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Western Mountaineering
"Bison SDL"

   Western Mountaineering Bison SDL
Western Mountaineering Bison SDL

When your travels take you to the most extreme points on Earth, it pays to use the very best. Days spent at 19,000 ft. can take quite a toll on man and equipment. Western's Bison allows you the peace of mind to concentrate on other matters. This feature packed expedition bag is based on superior down control. The V-Block Side Baffle and 5 1/4" baffle spacing provide superior down control and allows the baffles to lie flat to prevent down migration. There are more down chambers which are smaller in volume so that loft is maintained along the sides and top of the bag. The amply filled Reverse Differential Hood is fitted with a down filled ruff to ensure maximum heat retention while the hood is closed. Huge Interlocking Double Draft Tubes and a massive down filled collar seal in heat, and are made completely with DryLoft fabric. The bag weighs less than 5 lbs. and is suitable for temperatures to -40F. The Bison is the crowning glory of Western Mountaineering and demonstrates their commitment to innovation and quality.
NAME SIZE COLOR PRICE QUANTITY
Bison SDL 6 ft. 0 in. - Right Zip Red $775.00
Bison SDL 6 ft. 6 in. - Right Zip Red $805.00
Bison SDL 6 ft. 0 in. - Left Zip Red $775.00
Bison SDL 6 ft. 6 in. - Left Zip Red $805.00
 
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FEATURES
  • Waterproof breathable Dryloft shell covering by W.L. Gore
  • Full DryLoft down filled Super Collar
  • Two Interlocking oversized down draft tubes
  • Filled with 42 oz. of down.
  • 10 inches of loft, good to -40F
  • Stiffening tape along zippers to prevent snags
  • V-Block Side Baffles
    •
SPECIFICATIONS
Model: Bison SDL
Temp Rating: -40
Weight: 4 lbs. 10 oz.
Insulation: 850+ Fill Down
Stuff Size: 11 x 22 in.
Shoulder: 64
Hip: 55
Foot: 39
Shell: 1.1 oz. Dryloft 830
Designer: Gary Schaezlein
Usage: Winter mountaineering
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