Red
$1,094.94
Backordered - Ships within 3 Weeks

* Required Fields

$1,094.94

The requested quantity for is not available and CAN’T be backordered

Quantity of these goods in a warehouse - 0

Western Mountaineering - Bison GWS

Free 2-Day Shipping! Limited time offer. U.S. only.
Denali, Aconcagua, the Himalaya... mountaineering in the extreme. These are places where the margin for error is zero, and so the Western Mountaineering Bison GWS is most often chosen to serve. A full Gore® Windstopper™ shell makes this bag windproof and virtually waterproof while remaining lightweight and surprisingly compressible. Stuffed with over 40 ounces of 850+ fill down, the Bison GWS has 10 massive inches of heat-trapping loft. Huge V-Block Side Baffles and horizontal baffles across your chest keep the down fill in place, and double Interlocking Draft Tubes and a down-filled Gore® Windstopper™ collar seal in heat while howling winds surround your tent. The huge hood is not only well-filled but is completely made with Gore® Windstopper™ and has a large 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 under 5 lbs and is the warmest bag you'll find anywhere.
Like all of Western Mountaineering's bags, the Bison GWS is made by hand in San Jose, California. Their down is sourced from free-range mother geese who are never live-plucked or force-fed.

International Restrictions Apply

Technical specifications & features

Weight Reg: 4 lbs 10 oz / Long: 4 lbs 13 oz
Gender Men's & Unisex
Color Red
Made in USA
Temp Rating º F -40º F
Temp Rating º C -40° C
Bag Style Mummy
Seasonal Usage Four Season
Insulation 850+ Fill Down
Fill Weight Reg: 42 oz / Long: 45 oz
Bag Shell Material GORE® Windstopper™ 830 Fabric (GWS): windproof, virtually waterproof, and breathable
Bag Length Reg: 6 ft / Long: 6 ft 6 in
Bag Stuff Size 11 x 22 in
Bag Loft 10 inches
Circumference at Chest Reg / Long: 64 in
Circumference at Hips Reg / Long: 55 in
Circumference at Foot Reg / Long: 39 in
Other Features Full GWS down-filled Super Collar completely surrounds your neck for maximum heat retention
Two interlocking GWS oversized down draft tubes mean zero cold spots along the zipper
Footbox made of abrasion-resistant taffeta, a more durable fabric woven with heavier yarns so the inside of your bag is protected when you store gear or boot liners at the foot of your bag
Stiffening tape along zipper to prevent snags
V-Block Side Baffles keep the loft where it belongs
Insulated External Hood Ruff
Free 2 Day shipping on Western Bags
Summer Sale 2017

Related Blog Posts

Features
Similar Products

When you're looking at your hiking gear and wondering how to pack a good night's sleep for your next trip, think Backcountry Gear for the best in sleeping bags, sleeping pads, and sleep accessories.



The sleeping bag you use makes all the difference in the world, not just when you lay down to rest, but also during the miles you go before you get there. Shed pounds from your pack for lightweight backpacking with a down sleeping bag. Or rely on the extra weight of a synthetic-filled sleeping bag for its warmth when it gets wet. From summer to winter, car camping under the summer stars or sleeping in an ice cave, Backcountry Gear offers sleeping bags to fit every season.



When the environment makes no compromises and you can't afford to either, Backcountry Gear has the full line of Western Mountaineering sleeping bags. All bags are filled with 850+ down, for ultra-warm and ultralite comfort. A great all around bag is the Western Ultalite 20 degree bag weighing just 1 lbs. 13 oz.  Or for extreme cold the Bison is rated to -40 and weighs under 5 pounds. If a synthetic bag is more your style, Backcountry Gear has The North Face synthetic-filled sleeping bags in summer, two-season, three-season, and even sub-zero options. The Cat's Meow is a versatile, go-to mountaineering bag, in a men's design or women's design. Zip up warm and stay that way.



Crank your comfort to 11 with Backcountry Gear's selection of sleep accessories. Therm-a-Rest makes a variety of practical, easy to use outdoor products, like ultralight air pillows and sleeping bag covers, not to mention an extensive line of sleeping pads with thermal reflective barriers to maintain your warmth while sleeping on the ground. If minimalist gear and ultralight backpacking is your thing, Cocoon Travel Sheets can be used as a sleep sack while traveling. From the ground up, and the layers in between, Backcountry Gear has you covered.



Headquartered in Eugene, Oregon, Backcountry Gear has the best sleeping bags and sleep gear from outdoor industry leaders like Sea to Summit, Marmot, Exped, and Western Mountaineering. We have the best in ultralight backpacking, camping tents, and outdoor clothing, too. When you plan for the outdoors, plan on BackcountryGear.com, your first stop for outdoor adventure. Every step of the way.