Western Mountaineering UltraLite ($540)

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1 lb. 13 oz.

16 oz. of 850-fill down

Lightweight, super comfortable, and well-built.

Pricier and heavier than the Feathered Friends Hummingbird YF 20 above..

Feathered Friends sets the gold standard for the highest quality down products, however Western Mountaineering is hot on their trail. Specialising in down sleeping bags The San Jose-based company has a full line of items for all types of adventurers with everything from tough waterproof bags for expeditions to quilts that are featherweight. The UltraLite features a fully-featured 20-degree model which comes with 16 ounces of 850-fill dun (5 in. of loft for down) and a wrap-around draft collar and a full-length YKK zipper. In all it’s a classic UltraLite is the most sought-after backpacking bag for three seasons to take on adventures during shoulder season and alpine conditions lower than 48 and with good reason.

In comparison to the 20-degree version of Feathered Friends Hummingbird YF above the UltraLite features a smaller shell that is twelve denier (the Hummingbird’s is 20D) and comes with less-quality down and weighs about 3 ounces heavier. We do think Western Mountaineering’s shell materials are a bit more soft than Feathered Friends and makes the UltraLite perhaps one of the more comfortable and comfortable 20 degree backpack on the market. For extra room for your body, you can choose the Alpinlite is a larger version of the UltraLite that gives you an additional 5 inches of extra girth in the shoulders, and 4 inches more for hips, with only 2 ounces in total weight.