Features of the Marmot Paiju 10 Sleeping Bag Pertex Quantum Air waterproof and breathable fabric Waterproof 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