- Box-baffle construction
- Efficient, form-fitting hood
- Insulated hood baffle
- Zipper draft tube with anti-snag design
- Internal liner loops
- Sleeping pad security loops
- Micro FatMan and Ribbon™ drawcords
- Ground-level side seams prevent heat from escaping
- Ultralight compression stuff sack included
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- Chevron stitching
- Top baffle collar
- Hip-length, two-way locking zipper
- Zippered foot vent
- External snap loops allow bag to function as a liner
- Hang loops for storage
- Micro captured cordlock
- Differential cut to maximize loft and warmth
- Storage sack included
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