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Western Mountaineering

Bison Gore WindStopper -40°F Down Sleeping Bag

$1,095.00

  • Description
  • Product Specs
  • Product Reviews

The Western Mountaineering Bison Gore WindStopper -40 Degree Down Sleeping Bag is the Holy Grail of sleeping bags when it comes to mountaineering in places with extreme climates where mistakes cannot be made. This bag is second to none when it comes to quality, features and lifesaving warmth. Packed with 42 ounces of 850 plus high lofting goose down creating a generous 10 inches of heat trapping loft, this bag will keep you warm and safe when temperatures plummet to an icy -40 degrees Fahrenheit. Huge V-block side baffles and horizontal baffles across the chest keep the down fill exactly where it needs to be to keep you warm. Double interlocking draft tubes along with a down filled WindStopper collar and a large hood with ruff provide a full seal from the elements outside.

 

This Western Mountaineering Bison GWS sleeping bag is the pinnacle of innovation and quality. It is highly weather resistant, highly compressible and lightweight at just 4 pounds 10 ounces and might just be a lifesaver in severe conditions.

 

All Western Mountaineering sleeping bags are made in the USA.  Find out more about Western Mountaineering here.

 

 

Features
 

  • Mummy bag with full down collar with WindStopper keeps warm air from escaping
  • W.L. Gore WindStopper (GWS) laminated shell fabric protects against moisture and condensation while staying extremely breathable 
  • 42 oz 850 plus fill power goose down create a 10 inch loft
  • Lightweight
  • Very compressible
  • Down insulated hood ruff with WindStopper
  • -40° F temperature rating
  • 5 ¼” spacing/V-block side baffle for better down control
  • Interlocking draft tubes with WindStopper seal out any cold draft
  • Reinforced foot section for storing gear
  • Stuff sack and storage bag included
  • Made in USA

Specifications
 

Western Mountaineering Bison GWS Sleeping Bag

 

Bison GWS 6'0" length

 

  • Rating: -40° F
  • Loft: 10"
  • Inside girth (shoulder/hip/foot): 64"/55"/39"
  • Fill weight: 42 oz
  • Total weight: 4 lb 10 oz
  • Stuff sack size: 11"x22"

 

Bison GWS 6'6" length

 

  • Rating: -40° F
  • Loft: 10"
  • Inside girth (shoulder/hip/foot): 64"/55"/39"
  • Fill weight: 45 oz
  • Total weight: 4 lb 13 oz
  • Stuff sack size: 11"x22"

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Western Mountaineering

Bison Gore WindStopper -40°F Down Sleeping Bag

$1,095.00

Item # 60BIWS

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