Features of the Marmot Paiju -5 Sleeping Bag Pertex Quantum Air waterproof and breathable fabric Water-resistant thread to prevent moisture from coming through seams Certified 800 fill power goose down Smooth, curved baffles reduce down shifting Cinchable draft collar for extra warmth Full-length locking YKK two-way zipper with zip-guard slider EN tested Fabric Details Pertex Quantum Air 20D 100% Nylon Ripstop Lining: 20D 100% Polyester Taffeta