Sierra Designs Vapor 15 - Down Sleeping Bags: Reviews

Ultralight and Packable

The Vapor 15 is the lightest 15-degree-rated bag on the market; it stuffs down to the size of a Nerf football—and isn't much heavier. Unfurl it, though, and you'll find the high-end, 850-fill insulates like a bag that weighs almost twice as much. Of course, to make a bag this light and compressible, you've got to make some sacrifices. The cut is exceptionally trim, the ultralight (and thin) 15-denier fabric must be handled with care, and the quarter-length zipper makes venting the bag in warm conditions difficult. But these are all minor gripes, and no one complained when it was time to figure out whose turn it was to carry the bag. 15º; 1.8 lbs; sierradesigns.com
Compressibility: 4.8
Warmth-to-Weight: 4.8

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