Shell Fabric:400T Waterproof Nylon spinning (Camouflage is 320T). Filling material:95% White goose down. Fill down weight:600 grams or 800 grams. Sleeping bag weight:1400 grams or 1600 grams. When you open the zipper, because it’s big enough, you can use it as a quilt, or even a carpet. 1 2 Person Down Sleeping Bag. Or, you can choose to get a replacement. Our goal is to ensure a happy shopping experience with us.