- Tapered profile fits standard mummy sleeping bags to reduce heat loss and improve warmth
- ASTM R-value of 4.9 provides dependable cold-weather protection
- Puncture-resistant TPU material stands up to rocky campsites and rugged backcountry use
- Vortex Valve enables quick inflation/deflation by breath, pump sack, or pump
- Dimensions: 72″L x 20″W x 3″Th
- Weighs: 1.4 pounds
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