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Gear Review

5 5

Simply the best

Western Mountaineering makes sleeping bags, and not much else. THIS is what they do – they make the world's best sleeping bags.

If you want the absolute warmest bag on the planet, THIS is the bag to buy. Other manufacturers make "-40" bags, but no one packs as much down into their bags as Western Mountaineering. They cost a bit more, but you're paying for more down. More down = warmer bag.

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more down, for more down :P

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A great bag to be sure, but not quite up to Feathered Friends Snowy Owl

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TOTALLY AGREE with oldguy68, you are absolutely CORRECT!!! ...Feathered Friends Snowy Owl is much better, in both packability and performance. The Bison is definitely NOT packable due to the Gortex material used on its system. I am also loving VALANDRE Thor, by the way. I am wondering if there is a Skandinavian bag out there that would out perform the Snowy Owl, the Swedish manufacturer has been known to have a very smart design and quality.

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Unfortunately, as Feathered Friends makes exceptional bags, they do not compare because the GWS(Gore Wind Stopper) used in a the Western Mountaineering bag is so you can use them with out a tent is windy conditions if needed in emergencies or outdoor recreation as most people posted pictures of already. The Snow Owl uses a "Pertex� Shield EX waterproof/breathable" which is much thinner less durable which is obviously less ideal in outdoor conditions. As far as the packability goes, turn any Western Mountaineering bag inside out and you can compress it twice as easier. I am easily able to get the Bison in a Large(20L )Sea-To-Summit compression sack and compress it to about 12L. Bottom line, if you want a bag that is fragile and heavier by over 16oz, get stick with Feathered Friends, if you are looking for a more durable, longer last bag, stick with Western Mountaineering. As far as the warmth goes, -60 degrees is way over rated for the Snowy Owl. It is warm, but not as warm as the Bison. If you want the Bison even warmer, ask for the over fill option and they put even more down bringing it to a true -50 degrees.