Increase the warmth of your sleeping bag by up to 15 degrees Fahrenheit. This lightweight, soft, and stretchy sleeping bag liner is made of Dupont Thermolite, which traps a layer of air between the fabric and your skin. Carry this eight ounces and ensure your comfort!. . . Box foot and hood design; measures 35 x 82 inches; weighs 8.1 ounces. Stretchy and soft knit polyester fabric; washable and quick drying. Keeps sleeping bag clean; odor resistant. Can be used as very light warm weather bag. Nylon stuff sack with carry handle included 9327868000197 19739600012 119