ALPS Mountaineering Blue Springs 20-Degree Sleeping Bag, Wide MicroX+ double-layer offset; Multiple sizes and temperatures available #8 separating zippers; Insulated zipper baffle 210T Nylon rip stop outer fabric; 210T Polyester liner Compression stuff sack included; SKU #4717632 Wide: 36" x 84"; Fill Weight: 39 ounces; Total Weight: 3 pounds, 15 ounces