RAB Mythic Ultra 180 and 360 Sleeping Bag Reviews

RAB Mythic Ultra – Great in a hammock.

RAB have produced two state of the art sleeping bags in the Mythic Ultra 180 and Mythic Ultra 360 sleeping bags. Utilising the same technology, both bags offer low weight, small pack size, Hydrophobic Down and the ground-breaking TILT technology – Thermo Ionic Lining Technology. The TILT in real simple terms brings elements of an emergency space blanket incorporated into the design of the bags.

Offering best performance at weight for any comparable bag, both the 180 and 360 have been my ‘go-to’ bags since early in 2020. 

Quite simply, amazing levels of warmth for low weight.

Image ©RAB

The RAB Mythic 180 has 180g of 900+ fill power Hydrophobic down and a comfort limit of 0 degrees and a weight of 390g. It’s a perfect bag for warmer weather and any adventure when low weight, small pack size and warmth are important. Perfect for multi-day racing for Marathon des Sables or similar and, is brilliant for fastpacking adventures when travelling in a self-sufficient manner.

The RAB Mythic 360 has 360g of 900+ fill power Hydrophobic down and a comfort limit of -8 degrees and a weight of 620g. This bag utilises all the same technology of the 180 and quite simply is warmer and heavier. Just like the 180, it’s the perfect bag for racing and fastpacking adventures in colder and more challenging conditions.

Please read How To Choose A Sleeping Bag.

IN USE

Mythic Ultra 360

The recent 18-months have allowed me more time outdoors than ever before and almost weekly I have ventured outside on multi-day fastpacking adventures or overnight trips. The 360 and 180 have been on most of these trips offering low weight, small pack size and incredible warmth.

I am lucky, based in Norway, I get to fully experience the cold of winter and in summer, warm and comfortable nights.

An overnight fastpack in February and I was camping in -18 degrees on snow in a small one-man tent. The Mythic Ultra 360 with a comfort rating of -8 was not going to be enough for a cold night, however, I had planned accordingly carrying Merino base layers, down pants, and down jacket. When all combined inside the Mythic Ultra 360 I was cozy warm. This was an extreme test of the 360 and importantly, I think it’s important to understand how layering is an important element to the use of any sleeping bag. It offers incredible flexibility.

But the true test of the 360 has come on regular trips in Autumn and Spring when the temperatures are hovering around +5 to -5. In these situations, the bag has performed flawlessly providing low weight and incredible warmth all in a small package. The groundbreaking TILT really does perform and as mentioned earlier, it’s like adding a space blanket inside the bag. It’s heat reflective and therefore increases the internal warmth for minimal extra weight.

I consider the bag a game changer for its weight v performance but of course, this comes at a price. Expect to pay around £700 for this technology. 

Using 7D ripstop nylon, TILT and excellent design, the Mythic Ultra 360 has been the most comfortable bag I have ever used. One would potentially think that just 360g of down would not be enough, especially for a -8 bag, but that is where the technology kicks in and that is why the price goes up. It’s the perfect bag alpinists, adventurers, and runners.

It has boxwall construction and trapezoidal baffles which allows the down to loft reducing cold spot risk. It has an ergonomically designed collar and hood that closes in around the head and neck reducing cold getting inside the bag and therefore allowing the warm air inside the bag no opportunity to escape. An anti-snag zip guard, angled foot box and short zip are additional features.

As you would expect, internal space is compromised, after all, this helps keeps the weight down. So, this may be a consideration, it’s suitable for someone up to 6-foot tall with comfort. After that, it would come down to personal comfort and needs. Shoulder width is 27 inches, hip width 21 inches and the foot width 16 inches.

FEATURES

The bag comes with a large cotton sack so you can store without compressing the down, it is also supplied with a compression dry bag. It has a ½ length zip on the left only. The down is Hydrophobic, so, it can get wet and retain warmth, an important feature. 7D Ripstop fabric and importantly the TILT technology is a USP to boost warmth thereby facilitating lower bag weight. Tested to EN1357:2016 standards, the Mythic Ultra 360 has comfort of -2, Comfort limit of -8 and an extreme limit of -27 (but I wouldn’t want to be in that situation!)

CONCLUSION

This is a high-performance bag and state of the art. If the cost is no problem and you require small size, low weight, and warmth, the RAB Mythic Ultra 360 should be on your list. It’s an amazing bag!

Mythic Ultra 180

At £550 the 180 has all the features of the 360 above and it has the same measurements: Suitable for someone up to 6-foot tall with comfort. After that, it would come down to personal comfort and needs. Shoulder width is 27 inches, hip width 21 inches and the foot width 16 inches.

It also has all the same features including the cotton storage bag, dry bag, 7D ripstop, TILT, 900+ Hydrophobic down and same great construction.

Quite simply, the Mythic Ultra 180 is a stripped down 360 designed for warmer temperatures and thus bringing even lower weight and pack size.

At 400g, it is perfect for racing or fastpacking when temperatures at night are expected to be 0 degrees or above, as such, it’s a perfect bag for Marathon des Sables or similar multi-day adventures. It’s also ideal for Mountain Marathon events and summer alpinism.

All the pros and cons listed above for the 360 are directly transferable for the 180.

FEATURES

The bag comes with a large cotton sack so you can store without compressing the down, it is also supplied with a compression dry bag. It has a ½ length zip on the left only. The down is Hydrophobic, so, it can get wet and retain warmth, an important feature. 7D Ripstop fabric and importantly the TILT technology is a USP to boost warmth thereby facilitating lower bag weight. Tested to EN1357:2016 standards, the Mythic Ultra 180 has a comfort limit of 0 degrees.

CONCLUSION

Low weight, amazing warmth and small size, the Mythic Ultra 180 is a bag for warmer temperatures when price is no issue and features are paramount. It’s a perfect bag for racing and fastpacking adventures and the Hydrophobic down gives peace of mind in poor weather conditions.

FINAL THOUGHTS

The RAB Mythic Ultra 180 and 360 bags are state of the art and work together with each other offering low weight and warmth for any adventure. I am fortunate to have both and therefore can switch between 180 or 360 based on weather conditions. However, all sleeping bags have greater flexibility when one adds layers. The 360 can be used in much colder temperatures with Merino and down layers. You could argue that this adds extra weight to the overall pack, but, if you are out in in -10 or lower, you will be carrying these layers anyway for day use.

The 180 is a lighter bag and again, adding a layer or multiple layers when inside will increase warmth. A prime example being a race like MDS, many take a very light down jacket for when sitting around, add this inside the bag and the warmth increases.

However, here in the RAB Mythic Ultra, remember the TILT works by reflecting heat, so, one would need to test and try what method provides the best warmth.

Ultimately, if you need a sleeping bag the 180 and 360 offer two great starting points and they should be a consideration.

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Haglöfs L.I.M Essens Jacket Review

Haglöfs have been a premium brand for more than a century developing outstanding outdoor products that combine a strong sense of Swedish heritage with a commitment to sustainability and innovation. The launch of L.I.M (Less Is More) personified the essence of lightness. In Spring 2020, Haglöfs updated the L.I.M Series – lightweight, high-performance products that deliver uncompromised performance when taken up mountains and into the wilderness, anywhere in the world.

The L.I.M Essens Jacket Men is currently my go-to jacket for any running or mountain adventure, quite simply, it’s the best product I have tried. It combines three key elements perfectly: low weight, small pack size and warmth.

Quite simply, ‘Essens’ is the essence of lightness. The warmth and very low weight is attributed to extremely light and durable material and first-class goose down with 800 CUIN filling. Importantly, the down is treated with fluorocarbon-free DWR which works so well that the filling stays dry for up to 10,000 minutes with exposure to wet conditions. 

This is a game changer… Down has always been known to have the lowest weight and smallest pack size, however, previous incarnations would mean that any wet or damp weather would leave the filling useless.

Now, with fluorocarbon-free DWR, down has all the benefits ans wet weather performance of a synthertic filling such as Primaloft, but with the huge advantages of low weight and packing size of down. The Nikwax Hydrophobic Down can be washed with an appropriate Nikwax (Nikwax Down Wash Direct) product.

Fit is superb both in female and male versions with excess fabric reduced to a minimum. Features are minimal and notably there is no hood, no chest pocket and two hand pockets with no zips, to save weight.

The jacket will fold and compress in to one of these pockets if required.

It has a mini-box quilted construction which ensures the down is spread evenly over the jacket leaving no cold spots. The fill is 800 CUIN. The DWR repels water and dirt making the Essens a perfect all-year round insulating layer.

A full-length zipper allows flexibility in regulatimg temperature and for cold conditions it has a high nick with chin guard. The bottom of the jacket and cuffs have a simple elastic construction to reduce drafts and maintain low weight.

IN USE

The Essens jacket has been with me on all my runs since receiving the product. I pretty much always run with a pack and due to the Essens low weight, small pack size and flexibility in all weathers, there has never been a reason not to take it. My male medium weighs 160g which is up there as one of the lightest down jackets available. The ability to maintain loft and insulation irrespective of conditions has been a game changer, be that on a run from home or more notably on a multi-day fastpack when weight v warmth is key. This is a product that works for any adventure, be that in the snowy mountains or for example on stage race like Marathon des Sables in the Sahara desert. Fit is neither slim or spacious, it seems to fit just right with enough flexibility in the arms, the back and sleeve length are optimised for outdoor use. Added to a merino base layer, it provide incredible warmth on cold days. Should you stop for a break, it provides ideal insulation to retain warmth before heading off again. On tough, challenging and wild days, the Essens is a superb insulating layer underneath a waterproof such as Haglöfs L.I.M Jacket which has minimalist design, is easy to pack, light and made from GORE-TEX Paclite® PLUS.

CONCLUSION

There is nothing to dislike in the L.I.M Essens Jacket, in all honesty it is the best I have tried. The warmth and comfort is incredible for such a lightweight jacket. The packing size and weight is difficult to beat. As I said, there is no reason not to take this on any run as it is the perfect insulating layer, irrespective of the weather.

RRP £200 available in 4-colours, sizes XS to XL male and female versions.

To clarify, this is not a paid review.

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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