Canvas,Cotton,Flannel Imported Designed to keep you warm during extreme weather, this -30 Degree bag is filled with our 7 denier TechLoft Silver Insulation Stay cozy in a heavy duty outer cotton canvas, paired with a 100% cotton flannel liner Features two-layer offset construction and insulated chest and zipper baffle, keeping cold spots and heat loss minimal Fully equipped with #10 zippers, roll-up straps and an oversized hooded rectangle Dimensions: 92" L x 38" W; Weight: 15 lbs. 9 oz.; Fill Weight: 160 oz.; Rolled Size: 38" L x 13" D