Fabric and Lining: The down sleeping bag made 400T ripstop nylon shell fabric and liner with 2-way YKK zipper against windy and wet weather. Extreme Limit is 41 Degrees F, Lower Limit is 50 Degrees F, and Comfort Limit is 68 Degrees F. Ultralight: Hike farther with the lightest down sleeping bag available Weight: 1.5lbs. Summit any mountain or camp by the summer sea with these compact bags and have room for carrying your favorite fleece blanket or silk liner, goose filled pillow, and pad.
Ultra Compact: This sleeping bag sizes: 79"L X 28"W; It can be compressed to carry bag, size only 6.7 inches x 7.8 inches, small enough to fit into backpack, easy to carry. The compressible sleeping bag can be completely expandable by zipper, great used for blanket. Expand Size: 79"L X 56"W. Design on Your Mind: This bag offers all the ultra-warm, compressible, and featherweight benefits that down is know for. Not only does the rectangular shape offer a spacious feel that you can shift around in, but it also allows you to zip it up to another 400T sleeping bag to make a double sleeping bag, and the bottom of YKK zipper allows you to vent your feet. Even when unzipped completely, one sleeping bag can conveniently cover two people as a light comforter.