Western Mountaineering Bison GWS -40 Sleeping Bag

7 imagesWestern Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 0in., 60BIWSLZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 0in., 60BIWSLZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 0in., 60BIWSLZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 0in., 60BIWSRZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 6in., 66BIWSRZ
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 0in., 60BIWSLZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 0in., 60BIWSRZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 6in., 66BIWSRZ
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 0in., 60BIWSLZ
1 of 7 images
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 0in., 60BIWSLZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 0in., 60BIWSRZ
2 of 7 images
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 0in., 60BIWSRZ
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 6in., 66BIWSRZ
3 of 7 images
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 6in., 66BIWSRZ
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
4 of 7 images
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
5 of 7 images
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
6 of 7 images
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL
7 of 7 images
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL

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Product No Longer Available

Unfortunately Western Mountaineering Bison GWS -40 Sleeping Bag is no longer carried by CampSaver.You can also explore other items in the Camp & Hike, Sleeping Bags, Backpacking Sleeping Bags, Mountaineering Sleeping Bags yourself to try and find the perfect replacement for you!

Product Info for Western Mountaineering Bison GWS -40 Sleeping Bag

Denali, Aconcagua, Himalaya mountaineering in its extreme sense. These are places where mistakes cannot be made and so the Bison is most often chosen to serve. Gore Windstopper fabric makes this bag impervious to the elements while remaining lightweight and very compressible. Crammed with 42 ounces of 850+ fill power down this bag has 10 abundant inches of heat trapping loft. Huge V-Block Side Baffles and horizontal baffles across your chest keep the down fill in place. Double Interlocking Draft Tubes and a down filled Gore Windstopper collar seal in heat and security while howling winds surround your tent. The massive hood is not only well filled but is completely made with Gore Windstopper fabric and has a large integral hood ruff to seal your face from the elements. The Bison is the crowning glory of Western Mountaineering and demonstrates our commitment to innovation and quality. This life saving bundle weighs in at a scant 4 lb. 10 oz.image

Features of Western Mountaineering Bison GWS -40 Sleeping Bag

  • 5 1/4in Spacing/V-Block Side Baffle
  • 64in/39in Shoulder/Foot Girth
  • Full Down Collar
  • Insulated External Hood Ruff
  • Offset Insulated Double Draft Tubes.
  • 10in Loft, -40 F
  • 42 oz. Down Fill
  • 4 lbs. 10 oz. Total Weight

Package Contents:

  • Western Mountaineering Bison GWS -40 Sleeping Bag
Customer Reviews for Western Mountaineering Bison GWS -40 Sleeping Bag Read All (2)
Helpful Positive Review

Loft for Days

by JDP, Verified Owner from NV, United States Updated on April 3, 2023
This sleeping bag is a down filled dream. The construction is top notch, what you would expect from an polar expedition level sleeping bag. You will notice right off this bag doesn't feel like your typical down sleeping bag. The materials are far more robust, instilling confidence that you wont tear or damage this bag under normal use like most light weight systems. Given t...
Read more
Would recommend: Yes
7 of 7 people found the following review helpful.
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Helpful Positive Review

Bison GWS... the one I am looking for

by soleil, Verified Owner from Yongin-Si, Korea, Republic of Updated on January 26, 2022
Although I am not an expert in mountain trekking I have been enjoying mountain hiking and camping for years. I believe when camping in the mountain top the sleeping bag is the most important item over tent, matress, etc. especially in winter season. During winter the temperaure of most of Korean mountain like Seorak, Jirl and so on easily goes below -10 degree and often below...
Read more
Pros:
  • None
Cons:
  • too expensive
Best Used for:
  • essential item for winter camping
Would recommend: Yes
11 of 12 people found the following review helpful.
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Questions & Answers for Western Mountaineering Bison GWS -40 Sleeping Bag No Questions Asked Yet

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Western Mountaineering Bison GWS -40 Sleeping Bag Unavailable & Discontinued Models

List of Unorderable Models

Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 0in., 60BIWSRZ , MPN: 60BIWSRZ , UPC: 813735021215 , Code: Z68-SI-WTM0015-111364
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 0in., 60BIWSLZ , MPN: 60BIWSLZ , UPC: 813735021208 , Code: Z68-SI-WTM0015-WTM0015-R-L
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, RZ, Red, 6ft. 6in., 66BIWSRZ , MPN: 66BIWSRZ , UPC: 813735021239 , Code: Z68-SI-WTM0015-111367
Western Mountaineering Bison GWS Sleeping Bag, -40F/-40C, LZ, Red, 6ft. 6in., 66BIWSLZ , MPN: 66BIWSLZ , UPC: 813735021222 , Code: Z68-SI-WTM0015-111366
Western Mountaineering Bison GWS -40 Sleeping Bag, Left Zip, Crimson/Black, 6ft 6in, Extra Wide, 66BIWSLZXL , MPN: 66BIWSLZXL , UPC: 813735024292 , Code: Z68-SI-WTM0015-66BIWSLZXL
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