For use with a sleeping bag or by itself when traveling. . Keeps your sleeping bag cleaner. Silk lets you sleep in greater comfort. Strong silk fibers breathe well and add warmth. Includes zippered nylon pouch. Weighs 5.7 ounces; measures 73 x 36 inches. Stuff sack measures 3 x 4 inches. | Sea To Summit Silk Liner, Standard Rectangular