Mountain Trails Cascade 40 degrees Adult Rectangular Sleeping Bag (Blue) Shell;: 100% Polyester Liner Fabric: 100% Polyester Insulation Type: 100% Polyester Fiber Imported Warm-weather, rectangular sleeping bag with 40-degree Fahrenheit temperature rating Filled with 2.5 pounds of non-allergenic, Insul-Therm polyester Outer shell and liner constructed of quilted polyester for comfort Self-repairing coil zipper can be attached to second bag Machine-washable; measures 72 inches long and 29 inches wide