Durable construction with a draft tube along the anti-snag zipper keep cold air out and warm air in. High-loft, heat-trapping Slumberloft™ synthetic insulation. This bag can be used alone or zipped to a same-sized rectangular bag for two-person sleeping. Polyester taffeta shell and liner. Stuff sacks included. Imported. Size: 80"L x 34"W. Temperature rating: 20ºF. Carry weight: 4 lbs. 14 oz. Fill Weight: 3 lbs. 9 oz.