Lightweight Coletherm hollow polyester insulation sleeping bag. Features Thermolock draft tubing to keep body heat in the bag. Comfort Cuff design ensures soft fabric around the face while sleeping. ZipPlow zipper for snag-free opening and closing. Roll Control system works to keep bag straight while rolling and no-tie Quick Cord system keep the bag cinched tight. Temperature rating: 40 degrees Fahrenheit. Size: 33 inches x 75 inches.