Kelty Tumbler 40/60 Degree Sleeping Bag Fill: Polyester Fiber; Shell: 100% Polyester; Liner: 65% Polyester/ 35% Cotton Imported Dual Temp Rating : 40F/4C or 60F/16C Insulation : Cloudloft Weight: 3 lb 3oz Fits to 6'6" Shape: Rectangular Bag