Let's be honest. You probably lost the stuff sack that came with your quilt in a flurry of excitement right when you opened the box it came in. We've all been there. Fortunately, a replacement is available.The Stuff Sack is made with lightweight waterproof 15D Silnylon fabric to keep your gear dry when the world wants to make it wet. It isn't designed to be a roll-top dry bag, so we still recommend using a waterproof pack liner to protect against submersion or very heavy precipitation.