2633 Spenard Rd. Anchorage, AK 99503 - 907-272-1811

Western Mountaineering Bison WindStopper

The lightest expedition temperature bag on the market, this bag is feather-soft liquid lava in a small package. When the only constant is constant cold, count on 42oz of 850+ down and the best lightweight fabrics to keep the cold out and the warmth in.
$1,065.00
Article number: Bison WS-6'
Availability: In stock (1)

Weight is 4 lb 10 in (6'/180 cm)


Temperature rating is -40 degrees Fahrenheit (-32 Celsius)


Available in three lengths: 5' 6", 6' and 6' 6" (165, 180 and 200cm)


10.5" (24cm) of loft using 850+ fill power goose down


V-Block side baffle system keeps the down exactly where you need it


Wide 6" baffle spacing


42oz (1190g) of down fill (6'/180cm length)


Inside dimensions are 64"/55"/39" (163/140/99 cm)


Added width for comfort and layering


Stuff size is 11"x22" (6'/180cm length)


XX-Large stuff sack size


Gore Fabrics WINDSTOPPER fabric for extreme conditions


Full wrap-around down-filled collar to seal out the cold


Roomy GWS hood fabric with cord lock cinch


Footbox reinforcement for internal gear storage


Full-length durable #5 YKK zipper


Full-length MicroLite XP sealed draft tube along the zipper

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