Kelty Women39;s Cosmic 20 Degree Sleeping Bag Regular Fill: Polyester Fiber; Shell: 100% Polyester; Liner: 100% Polyester Imported Temp Rating : 20 / -7C Insulation : CloudLoft Pro Synthetic Weight 3 lb. 13 oz. Ground-level side seams prevent heat from escaping Zipper draft tube with anti-snag design