This envelope-style sleeping bag is light-weight and can keep you warm at your camp site after a day of hiking and climbing. It"s great for use in cabins and camping tents outdoor in temperate conditions. It"s made of 210T Nylon, waterproof, 2 x 200G M2 hollow fibre and has a side zipper for easy entrance. FEATURES: Carrying bag with adjustable straps; 210T Polyester; Weatherstrip for keeping warm; Lining: 190T Nylon; Filling: 2 x 200G/M2 Hollow FibreSPECIFICATIONS: Rating: -15°C/5°F; Overall dimensions: 28" x 84"