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The Western Mountaineering Bison Gore Windstopper Sleeping Bag is constructed to provide complete protection from the elements in temperatures as low as -40 degrees Fahrenheit. Using Gore Windstopper fabric, the Bison is impervious to wind and water while remaining compressible and lightweight at 4 lbs, 10 oz. Filled with 42 oz of 850+ fill power down, this alpine sleeping bag provides 10 inches of heat saving loft. Western Mountaineering uses oversized V-Block Side Baffles on the Bison sleeping bag to keep the down fill in place, and the Double Interlocking Draft Tubes and Gore Windstopper collar with Hood Ruff will keep your body heat sealed in. The Western Mountaineering Bison Gore Windstopper Sleeping Bag proves the brand's commitment to innovation and quality and provides a sleeping bag that can truly become a life saver in harsh winds and freezing temperatures. Bonus Feature? All Western Mountaineering sleeping bags are made right here in the USA.
FEATURES of the Western Mountaineering Bison Gore Windstopper Sleeping Bag
5 1/4" Spacing/V-Block Side Baffle
64/39" Shoulder/Foot Girth
Full Down Collar
Insulated External Hood Ruff
Offset Insulated Double Draft Tubes
10" Loft, -40 F
42 oz Down Fill
4 lbs 10 oz Total Weight
We only ship this brand to US Addresses.
Shoulder Circumference (Long):
Hip Circumference (Long):
850+ Fill Down
Winter Camping, Basecamp and Expedition, Backpacking, Mountaineering and Alpine
Fill Weight (Long):
Hip Circumference (Regular):
Max User Height (Long):
6 ft 6 in.
Max User Height (Regular):
Shoulder Circumference (Regular):
Exact Temperature Rating:
-40 Degrees Fahrenheit
Foot Circumference (Regular):
Foot Circumference (Long):
Fill Weight (Regular):
Sleeping Bag Insulation:
Sleeping Bag Shape:
Sleeping Bag Features:
WINDSTOPPER fabrics keep you comfortable by controlling the microclimate directly around your body. They do this with an ultra-light, ultra-thin membrane which blocks wind while allowing interior moisture vapor to escape. Your microclimate will be so cozy and inviting, you could probably timeshare it out.
Rated 4 out of
Beautiful bag and backed by an awesome team of people at WMMy relationship with this bag can be best summarized as love at first sight. Unfortunately, the first time I used the bag I noticed that the stitching (though beautiful and perfect everywhere else on the bag) was loose in about a 1 cm section at the base of the collar, and it was slowly leaking down. I called WM and they were super nice and helpful. They told to mail in the bag on their dime (using their UPS account), and they would fix it and rush it back to me in time for a trip a month from now. I have never felt so good after dealing with a customer service department. I still have 100% confidence in the bag, and now I also have 100% confidence in the company and their warranty.
Date published: 2010-11-09
Rated 5 out of
pretty awesome bagon an ill fated (we had to hike out to closest road after getting dumped on by 20" snow over night) Pemi traverse last winter this bag was awesome. I am 6'6" 185lb and always cold in bags in the winter. This is the first bag that I was legitimately warm in the middle of a northern NH winter.
Date published: 2011-11-05
Rated 5 out of
COZY FIREPLACE-27â night @ camp2 ama dabalam nepal. feels like sleep in front of a cozy fireplace.hard to describe the detail, highly recommended.
Date published: 2014-12-03
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