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Western MountaineeringAlpinlite Sleeping Bag: 20F Down

Western MountaineeringAlpinlite Sleeping Bag: 20F Down

$570.00 - $600.00
Select a color:Cranberry

Select a size:


5 out of 5 stars
47 Reviews

Why We Like The Alpinlite 20 Down Sleeping Bag

Climbing or traversing technical pitches with a massive load dangling behind you is a bad way to go through life. We recommend the Western Mountaineering Alpinlite 20-Degree Down Sleeping Bag for alpine climbers and weight-obsessed backpackers who demand top-shelf quality and bottom-line weight savings.

We love how its 850-fill down insulation boasts some of the highest quality loft-to-weight ratio around, meaning it's surprisingly warm for how little it weighs. Western Mountaineering wrapped this insulation around a highly breathable shell to keep the down light and lofty when you're sleeping in a tent under a rainstorm.


  • Ultralight sleeping bag designed for alpinists and backpackers
  • Breathable shell fabric keeps down lofty
  • 850-fill down provides a high warmth-to-weight ratio
  • Continuous baffles and a down-filled collar prevent cold drafts
  • Wider shoulder girth allows for extra layering in cold environments
  • Western Mountaineering bags are made in the USA
  • Item #WES0041

Tech Specs

850-fill down
full-length YKK #5
Max User Height
[short] 5 ft 6 in, [regular] 6 ft, [long] 6 ft 6 in
Shoulder Circumference
[short] 63 in, [regular] 64 in, [long] 65 in
Hip Circumference
[short] 56 in, [regular] 55 in, [long] 56 in
Foot Circumference
[short] 39 in, [regular] 39 in, [long] 39 in
Bag Length
5ft 6in, 6ft, 6ft 6in
Fill Weight
[short] 17 oz, [regular] 19 oz, [long] 21 oz
20 F
European Norm/ISO Comfort Rating
Storage Sack
Stuff Sack
Stuff Size
[5ft 6in] 7 x 13in, [6ft, 6ft 6in] 8 x 15in
Claimed Weight
[short] 1lb 13oz, [regular] 1lb 15oz, [long] 2lb 1oz
backpacking, alpine
Manufacturer Warranty

Overall Rating

4.5 based on 47 ratings

Review Summary

5 Stars - 41 reviews
4 Stars - 4 reviews
3 Stars - 0 reviews
2 Stars - 2 reviews
1 Stars - 0 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

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