Western Mountaineering Bison Gore Windstopper Sleeping Bag

Western Mountaineering Bison Gore Windstopper Sleeping Bag is rated 4.6667 out of 5 by 3.
  • 2015-09-01T13:12CST
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Product Description Item No.   10044148

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

- + Product Specifications
Best Use: Basecamp and Expedition, Backpacking, Winter Camping, Mountaineering and Alpine
Fill Weight (Long): 45 oz
Fill Weight (Regular): 42 oz
Max User Height (Regular): 6 Feet
Fill Details: 850+ Fill Down
Zipper Side: Right
Max User Height (Long): 6 ft 6 in.
Exact Temperature Rating: -40 Degrees Fahrenheit
Foot Circumference (Long): 39 in.
Foot Circumference (Regular): 39 in.
Hip Circumference (Long): 55 in.
Hip Circumference (Regular): 55 in.
Shoulder Circumference (Long): 64 in.
Shoulder Circumference (Regular): 64 in.
Sleeping Bag Insulation: Down
Sleeping Bag Shape: Mummy
Sleeping Bag Features: Draft Collar

Sleeping Bags Size Comparison Charts

EXtremeLite Series Bags
Model Shape Size Shoulder Girth Hip Girth Foot Girth
MityLite Semi Rectangular 6' 3" 62" 59" 46"
HighLite Mummy Box Stitched 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
SummerLite Mummy 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
Tamarak Semi Rectangular 5' 0" n/a 58" 33"
MegaLite Mummy with Top Collar 5' 6" 63" 56" 39"
6' 0" 64" 55" 39"
6' 6" 65" 56" 39"
UltraLite Mummy with Full Collar 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
AlpinLite Mummy with Full Collar 5' 6" 63" 56" 39"
6' 0" 64" 55" 39"
6' 6" 65" 56" 39"
VersaLite Mummy with Full Collar 5' 6" 62" 53" 39"
6' 0" 62" 53" 39"
6' 6" 63" 54" 39"
Microfiber Series Bags
Model Shape Size Shoulder Girth Hip Girth Foot Girth
Caribou MF Mummy Box Stitched 5' 6" 63" 56" 39"
6' 0" 64" 55" 39"
6' 6" 65" 56" 39"
Alder MF Semi Rectangular 6' 0" 62" 59" 46"
6' 6" 62" 59" 46"
Sycamore MF Semi Rectangular 6' 0" 62" 59" 46"
6' 6" 62" 59" 46"
Ponderosa MF Semi Rectangular 6' 0" 67" 64" 48"
6' 6" 67" 64" 48"
7' 0" 67" 64" 48"
Apache MF Mummy with Full Collar 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 51" 38"
Badger MF Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Antelope MF Mummy with Full Collar 5' 6" 62" 53" 39"
6' 0" 62" 53" 39"
6' 6" 63" 54" 39"
Sequoia MF Semi Rectangular with Full Collar 6' 0" 66" 61" 48"
6' 6" 66" 61" 48"
Kodiak MF Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Bristlecone MF Semi Rectangular with Full Collar 6' 0" 69" 61" 48"
6' 6" 69" 61" 48"
Lynx MF Mummy with Full Collar 5' 6" 61" 54" 39"
6' 0" 62" 54" 39"
6' 6" 63" 55" 39"
Puma MF Mummy with Full Collar 5' 6" 62" 55" 39"
6' 0" 64" 56" 39"
6' 6" 66" 57" 39"
Gore Windstopper Series Bags
Model Shape Size Shoulder Girth Hip Girth Foot Girth
Apache GWS Mummy with Full Collar 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
Badger GWS Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Antelope GWS Mummy with Full Collar 5' 6" 62" 53" 39"
6' 0" 62" 53" 39"
6' 6" 63" 54" 39"
Sequoia GWS Semi Rectangular with Full Collar 6' 0" 66" 61" 48"
6' 6" 66" 61" 48"
Kodiak GWS Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Lynx GWS Mummy with Full Collar 5' 6" 61" 54" 39"
6' 0" 62" 54" 39"
6' 6" 63" 55" 39"
Puma GWS Mummy with Full Collar 5' 6" 62" 55" 39"
6' 0" 64" 56" 39"
6' 6" 66" 57" 39"
Bison GWS Mummy with Full Collar 6' 0" 64" 55" 39"
6' 6" 64" 55" 39"
- +
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Rated 4 out of 5 by from Beautiful bag and backed by an awesome team of people at WM My 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 5 by from pretty awesome bag on 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 5 by from COZY FIREPLACE -27℃ 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
  • 2015-09-01T13:12CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_10044148, PRD, sort_relevancy
  • clientName_moosejaw

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