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Gear Review

Western Mountaineering UltraLite Sleeping Bag: 20 Degree Down

5 5

Community Rating | 13 Reviews

$420.00 - $450.00

Item # WES0031

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Tech Specs

Material: [shell] Pertex, nylon ripstop, [lining] nylon taffeta
Insulation: 850+ fill down
Shape: mummy
Draft Collar: yes
Max User Height: (short) 5 ft 6 in, (regular) 6 ft, (long) 6 ft 6 in
Shoulder Circumference: (short) 59 in, (regular) 59 in, (long) 60 in
Hip Circumference: (short) 51 in, (regular) 51 in, (long) 52 in
Foot Circumference: (short) 38 in, (regular) 38 in, (long) 38 in
Stuff Size: 7 x 13 in
Stuff Sack: yes
Storage Sack: yes
Degree: 20 F
Weight: (short) 1 lb 12 oz, (regular) 1 lb 13 oz, (long) 1 lb 15 oz
Recommended Use: ultralight trekking, three-season mountaineering, hut and yurt trips
Manufacturer Warranty: lifetime
5 5

Willy Syndram

Member since 

I Recently took my Western Mountaineering UltraLite 20 degree bag on an early season AT thru-hike. I combined it with a silk liner and slept comfortablly with tempature droping into the teens. When tempatures dropped into the singles and below zero I had to add my space blanket to the mix. It compressed very nice and quickly regained it loft once out of my pack. The full zipper allowed me to use it as a quilt when tempatures warmed up, and the mummy style allowed me to cinche up and trap body heat when it got cold.

The Western Mountaineering UltraLite 20 degree is one of the best bags out there...!!!!

Willy Syndram

Member since 
Responded on

I don't use a compression bag for my sleeping bag when I hike. This allows me to pack more efficiently and once out of my pack my bag seems to regain it loft quicker. It also saves a little bit of weight...

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