The Red Cedar Sleeping Bag uses a 2-layer construction to help eliminate cold spots and keep you warm. There is also a zipper baffle to help seal in your body heat. It is composed of a 100% cotton flannel liner and rugged cotton canvas outer. When it's time to store or transport the bag, it conveniently rolls up with the roll-up straps so it's easy to carry and doesn't take up too much room. Two-layer construction, 100% Cotton Flannel liner, Rugged cotton canvas outer, Roll-up straps and standard stuff sack. Temperature Rating: -15 Celsius, Length Regular, Size 38' X 79", Fabric Color: Brown/Flannel, Weight 9lb. 3 oz.