Western Mountaineering Antelope Sleeping Bag. Western Mountaineering Goose Down Mummy 5 degree sleeping bag. Please message with any further questions. The item “Western Mountaineering 5° Regular/Left Antelope MF Sleeping Bag” is in sale since Monday, January 25, 2021. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “rex-reeves” and is located in Little Rock, Arkansas. This item can be shipped to United States.