Store your sleeping bag, clothing, and any other items you want to keep dry in a DRI-SAK. No matter what size you choose or need we have a size that is sure to be right for your situation. They are seam taped, nylon witha TPU Film Lamination to ensure protection if your gear takes and unexpected dive into the water. They are a great addition that can be used in conjunction with any of the Snugpak backpacks or any other backpacks. Dimensions: 11.75 x 27.5 / 30cm x 70cmVolume: 35 LitersWeight 4.94 oz. / 140gColor:Coyote Brown