"Clever two-bag sleeping bag system from Slumberjack covers you in a range of camping temperatures. Zip one inside the other for comfort down to -5°C. In warmer temps, zip them together as a double bag. (Or use them separately.) Hollofil 808 insulation. Includes self-inflating mat. 38 x 84” 10 lb.(bag and mat)Stuff size 13 x 21”Polyester taffeta shell, polyester/cotton lining. Closeouts. China."