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Sierra Designs DriDown BTU20
Sierra Designs DriDown BTU20
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Sierra Designs DriDown BTU20
Tuck Stitch construction
Side-wall, box baffle construction
Oversized, ergonomically shaped footbox
Expedition Jacket Hood™
Thermally efficient 40 in. zipper
Snag-free zipper tracks
Zipper draft tube
Internal media pocket
Full, corded, draft collar
Draw cord at collar with captured cordlock
Drizone™ waterproof-breathable shell
Anti-microbial liner treatment reduces odor over long uses
Includes storage and compression stuff sacks

Temp Rating: -20° / -29°C
Shape: Mummy


Size Regular:


Fits to: 6 ft / 183 cm
Length: 78 in / 198 cm
Zipper Side: Left
Shoulder girth: 64 in / 163 cm
Hip girth: 60 in / 152 cm
Footbox: 43 in / 109 cm
Fill weight: 38 oz / 1.1 kg
Total weight: 3 lbs 14 oz / 1.47 kg
Stuffed diameter: 10 in / 25 cm
Stuffed length: 20 in / 51 cm