SwissGear Matterhorn Comfort Sleeping Bag 15F - 40F Temperature Rating Size: Adult, 36"x90". Temperature Rating: 15F - 40F Variable. Removable contoured hood with drawstring for additional warmth. Soft, warm cotton flannel inner liner. Outer liner is rugged polyester. 2 integrated compression straps with oxford cover for easy bundling and keeping bag clean. Removable comfort top for variable temperature control. Box quilt construction.