Western Mountaineering Bison GWS (Gore WindStopper) 6’6 left zip. This bag was used once for Denali a number of years ago, and has been in its Western Mountaineering large bag in storage dry and well stored ever since. It’s in excellent condition. New if it wasn’t used once. The item “Western Mountaineering Bison GWS (Gore WindStopper) 6’6 left zip” is in sale since Thursday, January 2, 2020. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “mdeagle” and is located in Los Angeles, California. This item can be shipped to United States.