MDS THE ULTIMATE GUIDE

Posted on July 17, 2025 by talkultra

The MARATHON DES SABLES is a unique adventure of 250km’s spread over 6-stages of self-sufficiency, shared by thousands of enthusiasts, in 2026 it celebrates 40-years. In 2017, another format, HMDS was born with 70 to 120km distances, spread over 3-stages and 4-days.

Since 2024 there has been a significant changes for the MDS brand. The ‘HMDS’ format while still following the same protocols and format has now dropped the ‘half’ title and moving forward, events will be called MDS 120 Jordan, MDS 120 Morocco, MDS 120 Cappadocia and so on.

To differentiate the full distance race of 250km’s, Marathon des Sables will now be known at MDS Legendary, reflecting the legendary status of this iconic event and its long history as a pioneer of the stage racing and multi-day format.

Cyril Gauthier, a new era for the race ©iancorless

All the races are now owned by the same team and while many may be familiar with the format and protocols for the shorter distance races, MDS Legendary since 2024 has had some significant changes.

Camp life and the desert, it is special. ©iancorless

Since 2024, MDS has expanded beyond its roots with MDS 120, the exploratory MDS TREK, the demanding MDS RAID, the mind-bending MDS Crazy Loops. and MDS ULTRA – Morocco. And the inspiring, MDS HANDI. Each one a new take on the same promise, to push the limits of what a runner can handle.

MDS EVENTS

MDS The Legendary
MDS 120 Atlantic Coast Morocco
MDS RAID Namibia
MDS 120 Cappadocia
MDS Crazy Loops – currently 2 locations in France.
MDS 120 Fuerteventura
MDS 120 Morocco
MDS Trek Morocco
MDS Handi Morocco
MDS 120 Jordan
MDS 120 Peru*
MDS ULTRA – Morocco

* Every 3-years.

WHAT IS MDS?

MDS is a self-sufficient race taking place over 3 to 6-stages.

MDS Legendary is the iconic 6-stage race (over 7-days) with a distance of 250km (+/-) based on the route, terrain and difficulty. There are no options available on distance and participants are self-sufficient for the entire race, the only exception is the provision of water and a shared tent (bivouac) with 7 other participants. An example of 2024 distances:

Stage 1 : 31.1 km
Stage 2 : 40.8 km
Stage 3 : 85.3 km (over 2 days)
Stage 4 : 43.1 km
Stage 5 : 31.4 km
Stage 6 : 21.1 km

MDS 120 events start at 70, 100 and 120km for the shorter race format, depending on the race destination, there are 2 or 3 distances available. To clarify, this is not 2 or 3 different races, but the same race with the option to choose what distance you run or walk. As an example, the route is divided into 3 stages (4-days), to be completed at your own pace: walking or running.

– 70 km
– 100 km
– 120 km

Here is a breakdown of each stage:

– Stage 1: 25km – 30km
– Stage 2: 20, 40 or 60km
– Stage 3: 25km – 30km

The choice of the format is made at the registration. However, you can adjust it until the time of MDS.

MDS RAID follows a similar format to MDS 120.

MDS TREK is not self-sufficient and while similar to other MDS events, the format is much more a holiday experience, ideal for first timers or those who are looking for an active travel/ relax experience. Read more HERE.

THE MDS FORMAT

MDS The Legendary and MDS 120 events follow a similar format, however, there are key differences:

MDS The Legendary is a 10-day experience

MDS 120 a 7-day experience

In both scenarios you arrange travel to the relevant destination, arriving with adequate time to meet the MDS team at a designated meeting point and time. This may mean you need to arrive one day in advance to ensure you are able to meet the schedule as stipulated. From here, the MDS team then transport you to the start of the race.

For MDS Legendary this will be a flight to Marrakech and free transport is offered to Ouarzazate.

For MDS 120 / TREK / RAID and ULTRA events, the meeting point will be a specific airport for transfer to hotel.

MDS The Legendary use classic Nomad tents that hold 8-participants. By contrast, MDS 120 events use individual tents organised in cells of 6. TREK has upgraded tents, RAID combines solo tents and a star night, MDS ULTRA will be hotels except when racing.

Post-race you will be transported to a hotel and an awards ceremony and gala dinner will take place.

EVENTS

MDS LEGENDARY the iconic 6-stage, 250km race celebrating 40-years in 2026.

MDS 120 (used to be HMDS) this is 3-stages over 4-days with distance options of 70/ 100 or 120km.

MDS TREK this is similar to the MDS 120 format, however, there is no self-sufficiency, more comfortable accommodation and additional facilities, an excellent introduction to the MDS.

MDS RAID an event for more experienced athletes that is undertaken in teams of two, over approximately 90-120km’s, typically, two distance options are provided. The format is similar to MDS 120 with 3-stages over 4-days. One night will be undertaken under the stars with no bivouac.

MDS ULTRA new for 2025, a 100-mile or 100km single stage race with a 40-hour cut off.

MDS CRAZY LOOPS three new events for 2025 undertaken in ski resorts, the format is to run as many loops as possible in 24-hours. The loops will be typically, 3-5km’s in length.

MDS HANDI an inspiring inclusive event to provide wheel chair athletes an opportunity to participate with team members.

THE RACE CONCEPT

You carry all you need for the race. ©iancorless

Both race formats, MDS Legendary, MDS 120, MDS RAID and MDS ULTRA require participants to be self-sufficient for the whole race.

What does this mean?

Quite simply, you must wear and carry all you need for your race experience with the exception of the tent / bivouac. MDS ULTRA will not require a bivouac or same kit requirements as MDS Legendary, Raid or 120.

It may sound daunting but it is not, it’s actually quite simple. You need to address the following points:

What you wear.
Equipment you need to participate.
Sleeping.
Food.
Cooking equipment. (You can purchase fuel blocks in bivouac)
Water.

WHAT TO WEAR

Hat to protect from the sun with optional neck protection.
Shirt (short or long sleeve) with adequate protection from the sun.
Shorts, skort or similar.
Socks.
Shoes with appropriate protection and durability for a desert environment with a gaiter (typically sewn on) to keep sand out of the shoe.

WAA is a partner for MDS have specific equipment for desert/ stage-racing.

Because you have entered a MDS event, there is no need to buy new apparel and shoes. Quite simply, if you have items that work, are comfortable, cause no problems or irritation, there is no need to change them. If it aint broke, don’t break it. Shoes always create a huge debate and please find what works for you. If you ask on any forum, you will get countless recommendations but none of those recommendations are specific to you and your needs. Read an article HERE and HERE.

EQUIPMENT

Always remember that with MDS events you are either wearing or carrying everything you need for the race duration. Therefore, it is imperative that you purchase the lightest options available (based on budget) and you keep luxuries to a minimum.

Keep it simple!

MDS specify ‘mandatory’ equipment for participation as specified below:

The Road Book provides all the info about the race and route ©iancorless

A pack with enough capacity to carry all your equipment, food and water – eg: WAA Ultra Bag 20L
Water carrying capacity of 1.5L minimum.
Sleeping bag read HERE
Headlamp (which must be turned on after dark) + 1 complete set of spare batteries or battery. Make sure it has a ‘red’ mode for night.
10 safety pins
Lighter
A whistle
Metal blade knife
Skin antiseptic
Signaling mirror
Survival blanket
Soup cubes (2 per day) to help the rehydration
Tube of sunscreen
100 / 200 euros in cash
Passport or identity card (depending of the destination)
Official MDS medical certificate completed by a doctor (form available 3 months before the race).
Road book

Each runner has a tracker for safety ©iancorless

What else do you need?

A sleeping mat is highly recommended to protect from the ground, insulate and provide comfort.
A jacket is highly recommended (lightweight down) for cold morning and chilly nights. Many products exist. An excellent combination item is offered by PHD but it does come at a price – HERE.
Poles are for many 4-wheel drive in stage races, Leki are highly recommended.
Stove – if you plan to have hot water, you will need a cooking system like those provided by Esbit. Please note, you cannot use any gas stoves in the desert, you must use fire bricks which you can purchase at bivouac.
Pot – if you are using a stove, you will need a pot/ mug.
Spoon with long handle for eating. Such as a Spork.
Buff or neck roll.
Sunglasses are essential and think about protection in sand storms, goggles may be required.
Spare socks and Injinji are highly recommended.
Flip flops or similar. Many use the weight free slippers from hotels, however, they rarely withstand the desert.
Watch / GPX
Personal items: Tooth brush, toothpaste, hand gel, wipes, toilet paper, ear plugs, blind fold etc.
Emergency – Things can happen during a race, so, be prepared with some essential items such as needle and thread, superglue, zip ties, monkey tape etc. If something rips or breaks, you need to repair it.

Luxuries

MDS is and should be simple in format. Remember, you must carry everything, so, keep luxuries to a minimum. Many consider a small MP3 player, look for something small, light and with great battery.

Phones are an essential part of our daily lives, do yourself a favour and leave it at home. The liberation is extremely rewarding. Please note, phones are allowed, however, it is prohibited to telephone on the bivouac or on the course. If you want to make a phone call, you will have to move away from these places so as not to disturb anyone.

SLEEPING

A sleeping bag is mandatory, so, there is no discussion here. The combined weight of your food is the heaviest and bulkiest item, however, a sleeping bag is next. These days there are many options available and quite simply you want the lightest possible, with the smallest packing size with required warmth at a price that you can afford. Not all sleeping bags are the same, so, consider this. Down is the best filling as it is the lightest, warmest and packs small. However, ‘fill power’ is a key element of down, fill power tells you how much volume a 30-gram, or one-ounce, sample of down will take up. So, the higher the fill power, the warmer the bag will be for less weight, because that one ounce of down has larger down clusters that provide more loft and have the ability to trap more heat. These bags will be more expensive.

Brands to look at: Nordisk, Seat to Summit, Rab, PHD, Western Mountaineering, Wilsa, Lightwave and so on.

Note here, that you will also probably be taking a down jacket for warmth. This can be used as extra warmth and insulation in a sleeping bag. So, it is possible to think about getting a lighter, less warm bag and supplementing warmth with a jacket.

UK brand PHD has come up with the perfect solution with an Ultra Jacket and Desert Race Half Bag but is does come at a price. However, it is comparable with the costs of jacket and bag by Nordisk.

Sleeping mat is highly recommended. When you are not running or walking, you are sitting or lying down, comfort is key. Two options exist, inflatable or not. Inflatable provides the greatest comfort but with poor admin does have the risk of puncture. Sea to Summit provide excellent inflatable options with low weight and pack size. Exped have excellent closed-cell foam.

FOOD

The MDS 120 events (TREK not included) are self-sufficient adventures. You need to bring your own food and carry it in your bag for the duration of the race.There is a requirement that you must have 2000 calories minimum per day. Please remember that from 2024, catering is not provided at MDS The Legendary and therefore you must have enough food and calories before the race starts.

Food is the heaviest item you will carry and is essential. Don’t skimp on food. Lay food out per day addressing key items:

Breakfast (be careful they are not too sweet)
Snacks while running (bars, nuts, dried meat etc)
Post-run recovery (usually liquid form is ideal)
Lunch if applicable (this could be another meal such as cous cous)
Dinner (dehydrated meal)
Evening snack (a bar)

Where possible, repackage food to make them smaller and lighter. However, make sure you keep nutritional information for the admin day. Pack food in day bags, that way it is easy to know what you have and importantly, you don’t take food you need for the next days. Keep doing this and you will be short of food at the end of the week.

Be organised with all your items ©iancorless

Food is personal and you must find out what works for you. Remember taste chances when fatigued and in hot environments, often, sweet becomes less palatable with a preference for savoury. Dehydrated meals will often be used for key meals such as breakfast and dinner, some hydrate well with just warm water, others need hot water. So, if you are not taking a stove, test this. Basecamp food is a good website that shows what options exist. After many tests, highly recommended products are Firepot, Lyo, Tentmeals and Adventure Menu. Personally speaking, Firepot produce the tastiest meals I have tried.

Make sure you add some treats to spice up your palette.

A food list for MDS The Legendary could look like this:

Dehydrated Meals x6 672g
Dried Mango 93g x 4 372g
Porridge 59g x 7 413g
Coffee 1g x 10 10g
Peanut Butter 33g x 5 165g
Honey 21g x 8 168g
Mini Salami 10g x 10 100g
Tropical Mix Bag 194g
Sesame Bites 27g x 6 162g
Dried Banana Block 270g
Mixed Nuts 200g x 2 400g
Macademia Nuts Bag 153g
Cranberries Bag 175g
Pitta Wraps 296g

Total Weight 3550g

WATER

Water provision, particularly at MDS The Legendary and MDS 120 has changed. In past editions, water was rationed and provided at key checkpoints in bottles, typically, 10km’s apart.

In 2024, the new organisation changed this and arguably, water is now available, as required whilst racing. It is poured from jugs by MDS staff.

In addition, intermediate water stations are added when deemed necessary to ensure competitor safety.

At key checkpoints, iced water is supplied and poured by MDS staff on the heads and neck to aid cooling.

Post-race, each runner is provided with a 5L bottle of water, this is used for evening cooking, breakfast and up to CP1 the next day. If you wish to wash or freshen up, this comes from the same water ration. So, prioritise food and drinking before washing.

THOUGHTS AND CONSIDERATION

MDS is available for all, be that racing snake or someone who is looking for the adventure of a lifetime. So, keep that in mind. A top runner will have his or her pack at the absolute minimum weight and will look to survive the week racing as fast as possible. They will spend the week hungry. You, for example, may wish to carry a little more weight and have some comfort during the week. Just don’t carry to much extra weight!

The pack you wear is a crucial item that not only must fit everything you need, but it must also be comfortable and allow easy access to drink. There is no one-stop solution here. We are all different sizes and have different body shapes, so, make sure you try options.Also remember, at the beginning of the race, your pack can be around 8kg, this adds extra pressure on the shoulders, so, make sure you have enough padding and comfort. Many packs now come with waist belts and this, for many, is a great solution not only for extra storage but weight distribution. WAA have the ultra bag which has been specifically designed for the job. Osprey have recently released the Talon Velocity 20 which in testing has been superb. Don’t be tempted to get a bag that is too large, remember, the more space you have, the more you may take.

Bottles are the obvious way to carry water, typically 2x 750ml on the chest straps. I personally really dislike this format, I find it uncomfortable and unpleasant. So, find your own solution. Bladders have always been considered a NO for MDS but I personally find the solution ideal for my multi-day adventures. If you are a ‘racer’ this is not the best solution, but for most, it is ideal. As always, bladders can puncture, so, think about this.

Correct shoes and gaiters are essential. ©iancorless

Shoes will always be a debate and point of discussion. Shoes are personal and must be suited to you, the individual. Consider your gait (neutral, supinate or pronate), consider time on feet, consider your weight, consider how much you will walk (and then double it) also consider shoe drop and how much cushioning you need. It’s impossible to recommend any one shoe because of these variables. You will see top runners using a lighter shoe, remember, these shoes only need to last 20-30 hours. However, you may well need a shoe for 40, 50 or 60-hours. Do you need a trail shoe? No, you don’t need a trail shoe but I would say that many trail shoes are more durable as they are designed for the rough and tumble of variable terrain. Do you need an aggressive outsole? No, you don’t, but I do think some grip is better than none and therefore I would use a trail shoe over road. Protection? Toe box protection is a good idea as deserts include lots or rocks, far more than you may think. Do I need a size bigger? Shoe sizing does depend on what is ‘normal’ for you. I always recommend a thumb nail of space above the big toe, you don’t need any more than this. Recommendations of going a size is bigger is bad advice in my opinion. A shoe that is too large allows your foot to move, a moving foot causes friction, friction causes blisters and the rest is the same old story that I see at desert races all over the world. However, I would recommend a shoe with a little more width in the toe box, this will allow for some comfort as the days progress. If you are prone to feet swelling, discomfort, blisters and so on, get a strategy sorted before you head out to your chosen race. You will need a gaiter and while not always the case, sewing velcro on a shoe can change its shape, so, consider this. There are specific desert racing shoes now available by Salomon and Raidlight.

Poles are a godsend, buy some and learn how to use them. They are 4-wheel drive.

You can be creative with food prep ©iancorless

Food is essential, make sure it works. Hot or cold water is a consideration and make sure if using meals that need rehydrating that they work with water at desert temperature. Never assume that water will always be warm because you are in the desert, just as we get hot years, we also get cool years.

Salt is needed to keep you in balance. Many foods contain salt so look to supplement that with the mandatory food cubes. Be careful here, for example, OXO works considerably better than Knorr. Do you need alt tablets? Do your research,, find out what you personally need and come up with a plan. Listen to a podcast HERE.

Feet – make sure you look after them. With the correct socks and correct shoes, there is no reason to get blisters and despite what some people say, the majority of people do not get blisters. Read Healthy for Running and Walking.

Heat is difficult and without doubt, it’s better to adapt to heat before the race. Read about Heat Acclimation by Dr Jodie Moss.

Hygiene is crucial and difficult when self-sufficient. But set up a protocol not only for your benefit but for those around you.

Luxuries keep them to a minimum.

Toilet paper is essential, make sure you have enough and compressed towels are brilliant to freshen up when you add a little water.

Take essentials on the plane and wear your run apparel and shoes. That way, should a baggage disaster happen your chances of racing improves.

Have additional items such as a base layer, sleeping bag liner and other items that may be on a ‘question’ list for the race. On night 1 and before you go to admin, you can make final decisions of what to and what not to take. Particularly important if you think you may be cold at night.

FINALLY

You signed up for the challenge, you wanted to be on the start line and therefore you are responsible for the outcome. Believe me, the ‘you’ that leaves the Sahara is not the same you that entered. Arguably, you change the moment you pay the deposit, the transformation process begins. Embrace the journey and apply yourself. Keep perspective, the MDS journey is an enhancement of you as a person. It’s easy to become obsessed, ultimately the majority of runners at MDS are enthusiasts, if you keep that in mind the journey will be a complete one.

Plan ahead, formulate a long term plan and don’t rush. The sooner you start this process, the greater your chance of success and the less chance of injury. Plan stepping stone races and don’t be fooled into thinking that you need to run marathons day-in and day-out. You don’t! Training is about ALL the training you do and not about anyone run.

Commitment, training and dedication. ©iancorless

If we exclude the top 50-100 runners (who will also walk sometimes) the majority of the MDS field spend a huge amount of time walking. Learn to walk! Believe me, it’s a huge tick in the MDS box and rest assured that if you are able to walk at a good consistent pace (barring injury or dehydration) you will finish MDS.

MDS is an inclusive experience ©iancorless

You are going to share bivouac with other people and you are going to have some serious highs and lows. These tent mates will pull you through and motivate you. They will become friends for life.

Legs, lungs, heart and feet will only get you so far. The mind is what will get you to the finish. Despite the hardships and pain, embrace the journey and mentally prepare for the challenge.

MDS is a magical and life changing journey, it really is a true challenge of mind and body to race over many days, irrespective if you complete or compete. It’s a hark back to a more primitive time, a time without clutter and modern technology. Embrace this. Embrace the silence of the surroundings and the simplicity of placing one foot in front of the other, eating, resting and sleeping and then doing it all again.

You can read a SUMMARY of the 2024 MDS The Legendary HERE

MDS 120 events HERE

MDS The Legendary HERE

Further reading:

How to choose a Sleeping Bag HERE

Fastpacking Guide HERE

Winter Fastpacking HERE

Walking with poles HERE

Walking efficiency when climbing HERE

Long Term Goal Setting HERE

This article was updated, July 17th 2025.

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Salomon S/Lab Ultra Dust Shoe Review

Posted on June 6, 2025 by talkultra

The Salomon S/LAB Ultra Dust isn’t just a rehash of the S/LAB Ultra Glide with a new colour way, no, this shoe is a purpose-built shoe designed specifically for desert ultra racing, developed on the feet of Mathieu Blanchard at Marathon des Sables in 2023.

The original incarnation used a different integral shoe, with feedback from Mathieu and others, it was decided a more cushioned shoe was required; step in the new Ultra Glide. The Ultra Dust not for everyone, and it’s not trying to appeal to everyone. This shoe is a specialist product, and like any anything that’s made for one task, it excels in that arena, but has trade-offs elsewhere.

Sizing is true to size. Due to the style of the shoe, you definitely do not want them too big. They need to fit correctly for good foot hold. For a Salomon shoe, the toe box is wider than most other Salomon shoes. Is it wide enough? Only you can answer this based on your own needs.

Photo by Ian Corless – From MDS The Legendary 2025

It may look like a mountaineering boot at first glance, but the S/Lab Ultra Dust has a stand alone Salomon shoe (Ultra Glide) fitted inside a bespoke gaiter, making an all in one shoe.

The integrated gaiter is the standout feature of the Ultra Dust. It’s integral into the design, forming a full ankle-wrap mesh sleeve that stretches snugly over the ankle and top of the shoe.

There’s one zipper, no velcro, no gaps, an elastic seal at the top can be pulled tight and that keeps out sand, just like a dry bag keeps out water.

There is also a superb toe bumper.

This isn’t your standard trail gaiter that slides around or traps heat. The mesh is thin, highly breathable, and stretchy, giving you ankle mobility without debris ingress. It works 100%, in countless test scenarios – Morocco, Namibia, Lanzarote, La Palma and even South Africa, this shoes gaiters performs perfectly with no debris entering the shoe.

The Ultra Dust has huge cushioning, energyFOAM+) : 35mm at the front and 41mm in the rear giving a middle of the ground 6mm drop. Despite the stack height, the shoe has great feel for the ground.

The cushioning is bouncy but not squidgy, they are surprisingly stable. In desert scenarios, the cushioning transitions superbly from soft-sand, hard/ stony ground and on technical sections they are extremely comfortable, however, here the stack height can produce less stability, it’s not horrendous, but worth noting.

The 6mm drop puts you in a slightly forward-leaning stance, perfect for driving through long, runnable flats and moderate inclines. It can help keep cadence high and your form efficient. By contrast, they are extremely comfortable to walk in. While zero-drop loyalists might not love it, this drop caters well to endurance racers who don’t want achilles/ calf strain late in a race. It’s a great middle ground. This higher drop provides a bit more heel support, especially helpful when fatigue sets in and your form deteriorates. That extra buffer can reduce calf strain in multi-day stage races.

This is where the Ultra Dust makes its biggest departure from typical trail shoes. Instead of deep, aggressive lugs, it uses low-profile 4mm, wide-surface lugs designed to float over sand rather than bite into mud or rocky terrain.

The Contagrip outsole (All Terrain Contagrip) has shallow lugs that are evenly distributed across the sole. They provide surface area rather than penetration. This minimises drag and helps prevent you from sinking into soft terrain. On packed trail, they still provide enough grip to stay stable, though this shoe isn’t made for slick rock or alpine conditions.

Durability is strong thanks to the full-length rubber coverage, but note that softer lug compounds wear faster on pavement or rocky trail. In desert conditions, though? This outsole will go the distance.

The Ultra Dust is unapologetically specialised with gaiter integration, a breathable upper, a sand-optimised outsole; everything is geared toward one thing, surviving and thriving in desert ultras with no sand ingress, comfort and blister free feet.

The upper is thin, synthetic mesh that breathes extremely well, doesn’t absorb moisture, and dries fast. You won’t find overlays or extra structure. It’s minimal to the core, saving weight and shedding heat. It’s a good looking shoe, for sure they stand out in white and red.

This shoe isn’t built for rocky single-track or alpine descents, however, it does perform in these scenarios. The Ultra Dust is built for wide-open flats, dunes, and heat-soaked multi-day endurance events. It’s the kind of shoe you pack for the Marathon des Sables or similar.

Salomon say, the upper is designed to keep out : dust, sand, snow and water. They do do that. As an example, I used the Ultra Dust at a very, very wet Transvulcania and they performed exceptionally. I am equally sure they will work well in snow.

When one considers that more events such as Marathon des Sables, the usual protocol has been to select a shoe, have velcro sewn on and then add a gaiter, the S7Lab Ultra Dust in price comparison fares very well. They are an expensive shoe, BUT, the cost of shoe, gaiter and sewing velcro on is almost the same. However, there is maybe one advantage of a shoe with velcro? If you tear the gaiter, you can cheaply replace it with a pair of new ones. Tear the gaiter on the S/Lab Ultra Dust and you have a problem….

Mine, after 5-months of abuse now have two small tears, they cause no issues currently, but maybe in the future they will? However, in experience, shoes for a race such as MDS ‘just’ need to last the event….

Features:

Contragrip outsole
energyFOAM+
Endofit
quickLACE

Elisabet Barnes using the S/Lab Ultra Dust MDS Legendary 2025 – Photo by Ian Corless

“Developed as a prototype for our athletes, the S/LAB Ultra Dust delivers comfort in extreme conditions no matter how fast you run. Dust, sand and everything else nature throws at your feet are kept out by the fully integrated gaiter with filtering properties. A lightweight, breathable and soft dream shoe for long distances.”

Final Thoughts: Who Should Buy This Shoe?

If you’re training for, or racing a desert ultra, the Salomon S/LAB Ultra Dust is a top-tier option, arguably the best in its class. A brilliant shoe that is finely tuned for a specific environment. If you are signing up for MDS or similar, this shoe should be top of the list for testing. They are comfortable, cushioned, have excellent grip, excellent protection and importantly, they keep out sand and debris. The Ultra Dust was clearly designed with direct input from elite ultra runners who know the pain of sand-filled shoes, melted midsoles, and overheating feet.

And a final nice touch? There is a place for NAME and BIB NUMBER on each shoe.

Website: S/Lab Ultra Dust HERE

Gemma Game using the S/Lab Ultra Dust MDS Legendary 2025 – Photo by Ian Corless

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PHD Ultra Jacket and Desert Race Halfbag Review

Posted on June 7, 2024 by talkultra

A key consideration for any self-sufficient multi-day journey is weight. Additional weight is just a burden, so, fine tuning equipment for your adventure is key.

In races such as Marathon des Sables, there is a requirement to be completely self-sufficient with just water and a shelter provided.

So, in addition to the clothes you are wearing, you must carry all the food required for the week, any luxuries and importantly warm layers: sleeping bag, sleeping mat, jacket and so on.

The debate, ”Do I need a warm jacket?” takes place every year and in all honesty, the most truthful answer is yes and no! It doesn’t help does it! The reason being, in a hot year, the need for a jacket can be very minimal or not at all. However, in a cold or cooler year, a jacket can be a life saver. So, the best answer here is usually have a jacket, take it with you and before the race, whilst in race location, make a decision based on the current weather and forecast.

Sleeping bag in some ways is easier to answer, yes, you need one! However, that is only the start of the process with a sleeping bag, you need to take into account key questions:

Do I sleep warm?
Do I sleep cold?
Am I tall?
Am I short?
Do I have wide shoulders?
Do I get cold feet?

And the above list can go on.

Also, budget is a consideration, there are many sleeping bag options and prices vary greatly.

Ultimately, for a jacket and sleeping bag we want the following:

The lightest possible.
The warmest based on our needs.
The most flexible system.

I personally have always been in favour of having a jacket, mornings can be cold and evenings can be chilly, so, the option of a jacket is great. Also, if you have a jacket, you can look at taking a lighter, less warm sleeping bag and looking to ‘boost’ warmth if required by wearing the jacket inside the sleeping bag.

With all the above in mind, UK brand PHD have come up with a potentially perfect solution.

The ULTRA JACKET and the DESERT RACE HALFBAG.

Before discussing in-depth, PHD understand the need for weight v warmth, they also understand layering and the benefits of top-quality ethically sourced down.

The ULTRA JACKET is super light at 200g and is filled with 1000 fillpower down, good for temperatures as low as -5 deg.

The DESERT RACE HALFBAG is a half size sleeping bag weighing 240g. This bag stops at the waist is filled with high-quality 950 fillpower down and is designed to keep legs and feet warm. However, the technology does not stop there. Understanding that deserts can be windy, they have added a neck-length sand cover or extender to cocoon your body, arms and hands to cut out air movement. This allows the user to regulate warmth and comfort.

If it is cold, you quite simply add the ULTRA JACKET and then pull the neck-length sand cover over.

This combination provides a sleep/ warm system for well under 500g that packs very, very small. Effectively, with this combination of products, not only do you save weight, but you increase flexibility and options.

THE JACKET

The Ultra Jacket weighing 200g for a men’s medium is a high quality product filled with 1000 fillpower down giving warmth to -5 degrees. It is a simple, no frills product designed to be as warm as possible and as light as possible. The outer fabric is windproof which adds to the warmth. It does have hand pockets with no zips, again to save weight. There is a zippered inner chest pocket. Standard colour is black but it is possible to choose red and as with all PHD products you can have a custom make with Hypershell or you can add a hood. You can also have a custom fit, specifying body width, body length and arm length.

Prices start at 498.00 UK pounds / 582 euros.

PHD say, “Our lightest sub-zero down jacket. A ‘K Series’ product. Warmth to weight at the limit of possibilities for extra-keen lightweight backpackers and mountain racers. Now also available in custom sizes.”

THE BAG

The Desert Race Halfbag is a simple, lightweight and effective solution for those looking to save weight, increase flexibility and still keep warm, it comes in a standard length.

The neck-length sand cover is a brilliant addition.

The addition of the neck-length sand cover increases warmth and flexibility on windy and cooler nights. Using top-quality 950 fillpower down, this half bag is incredibly light and packs small. It has stitch through construction ensuring down stays evenly spread with no cold spots. As with all PHD products, it is possible to have a custom make, for example add a zip, have it made short or long, choose a colour (green, red, black or white) or you can add Dri-LX outer fabric.

Prices start at 342.00 UK pounds / 400 euros.

PHD say, “Designed specifically for desert racing. From the legendary Saharan Marathon des Sables to the Kalahari’s KAEM, and the growing number of events in the Gobi, the Atacama, the Australian interior and all around the world, these events have their own particular set of challenges to overcome. Sweltering 40 degree (C) race days can give way to 4 degree (C) nights – that’s cold enough for frost – in which warmth, sleep and recovery play a vital part in preparation for the next day’s challenge.”

Read about the down HERE

950. A newcomer to our range. European goose of rare quality. A high value alternative at the top levels of performance. We have introduced a wide range of options in 950 in response to the soaring cost of 1000.
1000. European goose down of unique quality with exceptionally large lively clusters. 1000 provides the highest warmth-for-weight performance possible from down and has been used in PHD products since 2008. Unfortunately, scarcity (and the fashion industry) continue to push up the price steeply every year. This rarest of all downs we reserve for the K Series, our lightest products right through the range from marathon ultralights to alpine kit and on into high mountain gear.

IN USE

Desert Race Halfbag with neck-length sand cover and ultra jacket with hood

The system is absolutely brilliant and I have fallen in love with the weight of the two items, the flexibility to adjust my sleep comfort temperature and when it has been cold, the down jacket really gives a massive boost and pulling up the neck-length sand cover encapsulates me so that I feel I have a full sleeping bag.

There are some important points to consider, the effectiveness (warmth) of the jacket and half bag is improved by using a sleeping mat which adds comfort and insulation from the ground. Also, I intentionally chose a jacket with no hood as I preferred the lighter jacket weight and the option to add a hat or beanie to increase warmth. It’s really simple, want a jacket or sleeping bag to be warmer, cover your head.

CONCLUSION

The combo of jacket and halfbag is now, without doubt, going to be chosen fast-packing/ multi-day option. It just makes sense. I have a really warm jacket for sitting around. I have a really warm halfbag and when the two are combined, I have a really excellent and adaptable system for sleeping. The light and storable sand cover is really simple, use it or don’t use it, no worries, but the extra security and protection this gives is brilliant. PHD are really on to something here.

With high quality down products and lightweight fabrics, they compress and adapt when packing, so, adding these to a race bag after packing they will take up little or no space. As an example, I used two small dry bags (3L) by Osprey and Sea-to-Summit and packed the jacket and bag away to see how small I could compress them.

Are there any downsides? Yes, the price. The jacket and halfbag in standard configuration will cost you 840.00 UK pounds/ 982 euros. That is a hefty price tag. However, if you look at the cost of a down jacket and full sleeping bag, the prices are comparable, +/-.

This offer by PHD does not come cheap and yes, you can shop around and find options that are considerably cheaper. I guess I look at this a little like buying a car, any car providing it has fuel and it is in working order, will take you for A to B. However, based on desires, budget and the desire for the best, you can do that A to B ride in a small Fiat or a Ferrari. PHD are coming at the Ferrari end offering a luxury bespoke product that is extremely light, packs really small, is perfect for the task that is required and for that, you pay a price!

Only you can decide if it is worth it!

I have been using PHD for over 10-years, I have used their Minim bags in the Sahara and the Hispar bags in the Himalayas. The ability to have custom features has been, at times, a luxury. My original Sahara bag had no zip to save weight, however, my next bag had a full-zip which allowed me the option to use it as a blanket/ duvet. The Ultra Jacket and the Desert Race Halfbag has taken things to a next level and in doing so, they have provided me multiple options for temperature regulation in varying climate conditions and I love this. Should I go to a very cold climate in the future, I could now use this jacket and halfbag in combination with my Hispar bag to give me excellent sleep comfort below -20degs, that is awesome.

Go to PHD HERE

Read about the PHD sleep system HERE

PHD have always made a superb product, it is made in the UK with the highest quality products and importantly, ethically sourced down, which comes at a price. They may be expensive, but you get a top-quality product and excellent after service and care.

Reviews:

“It worked exactly as described. I consider the temperature ratings accurate. We had a couple of nights when the wind picked up and the sand blew. When this happened I was grateful for being able to pull the sand sheet on the half bag up over my head and use the drawstring to keep the sand out” – Gareth Scobie (Marathon des Sables competitor).

“The sensation of immediate warmth in the Ultra Jacket is unsurpassed. The 1000-fill is so high-lofting, it puffs up as if a pump has been attached. Rare and wonderful.” – Judy Armstrong in TGO Magazine.

“For me the half bag and pullover was perfect, probably the best bit of kit I bought. To be wearing the top half as a jacket in the evening, then slip into the lower half was simplicity itself. It was plenty warm enough…” – Dain Jensen (Marathon des Sables competitor).

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Marathon des Sables – The Legendary : Podcast Four with Ferdinand Charriau

Posted on March 26, 2024 by talkultra

Episode 245 of Talk Ultra is with Ferdinand Charriau, head of communications for Marathon des Sable – The Legendary. In this podcast we discuss the final details as the 2024 edition is just weeks away.

Listen Below

Listen to the podcast on Apple HERE

Spotify HERE

Key discussion points and notes:
The stock cubes provide a better and less aggressive provision of salt.
Water rations will not be as strict as in previous years, for example, at a CP, if you have 2 x 750ml bottles and a 500ml soft-flask, you can fill all three.
A 1.5ltr bottle will be issued at CP1 on the ‘long day’ so that it is possible to have a 3ltr capacity for the ‘long day!’
CP distances will be as usual 10 to 13km apart. HOWEVER, there will be intermediate water stations now, say at 6km +/- so you can access additional water.
There will be cold water at CP’s (not to drink) but the medical team will pour cold water to cool body temperature.
Stage starts will be between 0600 and 0730 depending on the stage and the length. For example, the ‘long-day’ will start at 0600. Most days will start around 0700 to 0730.
Email in printed format will not be provided. There will also be no email tent. However, there will be IP phones available for emergency use only. MDS ideally do not want you to use them, but, the option is there.
Mobile phones are allowed BUT you must not use them in bivouac – You must leave the camp in communicate in an isolated place. However, the MDS recommend being disconnected – be with yourself, and your tent mates.
Foot care will be as good if not better than before.
There will be fast response vehicles too – extra security en-route
There will also be medical runners – They will wear an orange bib and they will run the route for immediate response on the course.
There will be live tracking – access via the MDS website so people at home can follow.
Fuel blocks – If you have problems taking fuel. Fuel will be available in B1 and there will be enough for well over 200 people.
There will be a MDS shop in B1 selling all the mandatory kit – just in case!
Make sure you travel wearing your run apparel and carry you pack.
Meeting point is Ouarzazate airport on Friday 12th from 0800.
Be patient on arrival for passport control.
Bus transfer to B1 is approximately 6-hours. You will be given the road book. Also a lunch pack will be provided.
At B1 you will be provided a 5Ltr bottle of water, there will be a welcome briefing and then self-sufficiency starts.
There will be NO hot water provision in camp. If you want hot water, you provide it yourself.
Admin day will have a significant change and will be done via tents and not numbers as in the past, this will mean less wait time and more opportunity to sit in the shade.
Make sure you have original medical documents for admin day.
It’s important to have the minimum 2000 calories per day, but at admin, the team will not be very strict. Take personal responsibility. Have your food in bags for each day and then state the total calories in each bag.
There will be a medical emergency tent in the middle of bivouac. There will be more staff in the runner’s bivouac.
If there are any questions – email, contact on social media or call. The MDS team are available for you.
Wednesday 27th there will be an English and French broadcast.
There will be some new surprises, to be revealed in bivouac!

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Tips for the Trail – Katadyn BeFree 600ml Soft Flask

Posted on August 9, 2020 by talkultra

Katadyn BeFree Water Filter bottle

Running long, fastpacking or journeying for multiple days, either racing or training, and the need for water is a constant problem. It’s impossible to carry all that you would need and therefore, one must either resort to one of the following options:

Getting support from friends or using aid stations.

Purchasing from shops when possible.

Taking water from the trail.

In many scenarios, the latter option is often the ONLY option. However, how can you be safe knowing that the water you will drink, will not cause any issues or onward problems?

Step in the Katadyn BeFree.

With a capacity of 600ml, it is possible to access water from anywhere, filter it through the BeFree filter and then be confident that you are drinking safe water.

“The Filter removes bacteria, cysts and sediment with its pore size of 0.1 micron (0.0001mm). The output is up to 2L/min. and the capacity up to 1000L, depending on the water quality. 100% PVC and BPA free. “

Lightweight (59g), portable, ideal for on the go and easy to clean. The Katadyn BeFree is an essential item for any adventure.

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NEMO Hornet 1 Person Fastpacking Tent Review

Posted on July 27, 2020 by talkultra

Better wind and weather protection than a bivvy bag, the Nemo Hornet 1P is an ultralight double-wall tent that only weighs 731g. Ideal for solo fastpacking or bikepacking!

Sized for one person, the Hornet 1P will fit two people, yes it will be snug, but two people definitely can sleep with compromised comfort in this tent.

Read a guide on fastpacking HERE

Supplied with a single Y shaped pole (DAC poles) of supreme quality alloy, connection to the inner tent is made at three points, two on the corners of the top (head) end and one in the middle of the bottom (foot) end of the tent.

While these three arms are enough to hold up the inner tent in free standing scenario, you still need to stake out the four corners of the inner tent to stretch it out and make the full living space.

Read a guide on fastpacking LIGHT HERE

Top tip: Make sure you stake at least one corner first, especially in wind, before inserting the poles.

The head end of the tent connects with a ‘ball and socket’ (called Jake’s foot`) connection which is a clever design, the foot end is a simple metal protected hole. At the top of the tent, Nemo use a ‘Flybar’ which creates additional headspace with minimal weight.

The inner uses ’No-See-Um-Mesh’ on the sides for privacy. On the upper the mesh is black, so, for those warm and barmy nights when you can pitch inner only, lie back and gaze at the stars in comfort.

Join our Multi-Day Training Camp in Lanzarote HERE

A mesh pocket on the inner, near the door is ideal for wallet, glasses, phone or other essential items. One overhead pocket is designed for a headlamp and it uses a white semi-translucent fabric that diffuses light to create a soft lighting. Of all the solo tents I have looked at and used, headroom is excellent and sitting up relaxing or cooking is a pleasure. It is a roomy solo tent and will accommodate two for a cozy night!

There is one door, which opens into a vestibule providing excellent room and space to store your pack, extra gear and space to cook. The inner can also (optionally) connect to the fly on both sides of the tent to increase inner space. Ventilation is good due to the fly sitting high off the floor. A high bathtub protects from cold.

The rain fly is nylon ripstop 10D Sil (1200mm,) it is lightweight as one would expect and provides good privacy. The fly connects to the four staked corners of the inner tent and requires two additional tent pegs for the front vestibule and on the other side, the Hornet 1P is clever in reducing clutter and maximising tent pegs for dual use.

A central door zipper is protected against rain with a storm flap. Both the inner and outer door roll back and are secured with simple fastening systems.

Extra guylines are provided to secure the tent which secure to webbing loops that are attached to the tent. In windy weather, most definitely use them.

CONCLUSION

I am really impressed with the NEMO Hornet 1P. It’s a clever design, spacious, has loads of headroom and comfortable living space and all in a compact and lightweight package.

When weight and small volume are a priority, the Hornet comes highly recommended, especially for extended multi-day adventures. We can all compromise comfort for a night or two, but for extended trips, the Hornet’s living space and storage is a real plus.

Easy to set up, the Hornet is a real winner. However, it’s not perfect. The fly sits high off the ground which is great for ventilation and air flow, however, in bad weather, it will allow increased air flow and the tent is most certainly not as warm as others.

The fly and inner are just over 500g. That is incredible for a tent that offers this much living space. The pole system is simple and quick. The tent pegs provided are far too heavy for a tent of this nature and I can only assume that Nemo provide them because they are cheaper and that helps keep the cost down to the consumer. When you purchase the tent, make sure you get some lightweight tent pegs too.

731g for a solo tent is excellent and the NEMO Hornet 1P comes highly recommended.

*****

“For those looking for an ultralight shelter with greater volume, Hornet™ offers the ultimate in livability and comfort. Top shelf fabrics and a minimal pole structure shave every ounce possible, while our latest updates and new patent-pending Flybar™ volumizing clip add even more room without adding any weight.” – Nemo

Please support this website. I believe everyone deserves to read quality, independent and factual articles – that’s why this website is open to all. Free press has never been so vital. I hope I can keep providing independent articles with your help. Any contribution, however big or small, is so valuable to help finance regular content. Please support me on Patreon HERE.

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