Western Mountaineering Bison GWS

1 review
5-star:   1
4-star:   0
3-star:   0
2-star:   0
1-star:   0

Specs

regular long
Weight 4 lb 10 oz / 2095 g 4 lb 13 oz / 2180 g
Fill weight 2 lb 10 oz / 1200 g 2 lb 13 oz / 1275 g
Loft 10 in / 25.5 cm 10 in / 25.5 cm
Temperature rating -40 F / -40 C -40 F / -40 C
Fill 850 fill-power down 850 fill-power down
Shape Mummy Mummy
Max user height 6 ft 0 in / 180 cm 6 ft 6 in / 200 cm
Shoulder girth 64 in / 163 cm 64 in / 163 cm
Hip girth 55 in / 140 cm 55 in / 140 cm
Foot girth 39 in / 99 cm 39 in / 99 cm

Reviews

0

I got this bag at the end of Feb. 2011. I ordered…

Rating: rated 5 of 5 stars
Price Paid: $865

I got this bag at the end of Feb. 2011. I ordered it with overfill. I can't believe the loft it has, easily a full 12" all the way from head to toe. I will be using this bag in Gunnison, CO. mostly.

The craftsmanship on this bag is meticulous! The draft tube has stiffener tape to keep the zipper from getting stuck. The side block v baffles and the overfill don't let the down move, at all. The hood adjusts very tightly around the face area.

I got the 6'6" long version and I am about 5'10" 240 lbs. The fit is pretty good. I was a little worried about the Gore Windstopper material being water resistant, but it is all but totally waterproof, besides the only water the bag will incounter in below zero degree weather is tent condensation.

I'm looking forward to many years of use from this bag. By the way this bag gets hot fast! I would highly recommend this sleeping bag for anyone that is adventuring out in the extreme cold! Great stuff!!!

Where to Buy

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Manufacturer's Description

Visit Western Mountaineering's Bison GWS page.

Retailers' Descriptions

Here's what other sites are saying:

Denali, Aconcagua, Himalaya...mountaineering in its extreme sense. These are places where mistakes cannot be made and so the Western Mountaineering Bison GWS 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 their commitment to innovation and quality. This life saving bundle weighs in at a scant 4 lb. 10 oz.

- CampSaver.com

The Alaska Range is nowhere to make a bad gear choice. The Western Mountaineering Bison GWS, with its 10 inches of heat trapping loft and Gore Windstopper(TM) shell, is what it takes to stay warm at the 14,000 ft. camp on Denali. Nearly impervious to the elements, while remaining lightweight, the Western Mountaineering's Bison remains the most sought-after expedition quality sleeping bag. Gore Windstopper(TM) shell reduces the threat of condensation and moisture while remaining breathable A slightly over-sized winter fit ensures comfort when extreme weather necessitates an extra layer or two The massive Reverse Differential Hood with an added external hood ruff seals in warmth A full 3-dimensional down filled collar full provides a protective seal from the bellows effect as you move about inside your bag Enjoy easy ventilation with a full-length #5 YKK Coil Zipper featuring two locking slider pulls for convenient access from inside or outside the bag Dacron(R) stiffening tape ensures smooth zipping and prevents zipper jams Robust double insulated draft tubes are offset and interlocking to ensure heat can't find it's way out through the zipper 10'' Loft provides luxurious warmth and compressibility 5 1/4'' spaced baffles allow maximum loft while preventing down migration V side block baffles ensure that insulation stays put and increases the number of down filled chambers to warm quicker DWR finish keeps moisture at bay even after multiple washings 64''/39'' Shoulder/Foot girth Stuff sack and large volume storage sack included Abrasion-resistant taffeta lines the inner foot box, allowing you to store gear or wear liners without compromising durability Proudly made in the USA

- OMCgear

Made for extreme mountaineering, the Western Mountaineering Bison is a life-saving bundle made with Gore WindStopper and 850+ fill goose down for 10 in. of heat-trapping loft.

- EMS

Denali Aconcagua Himalayamountaineering 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 VBlock 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 ozFeatures 5 14 SpacingVBlock Side Baffle 6439 ShoulderFoot 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

- Bentgate.com