The Watershed Futa Kayak Bag combines the benefits of drybags and floatbags so you can make sure your boat won't swamp as well as use up all the precious space you have in your boat. Just put your gear in the bag, store the bag in your kayak, and inflate it with the long tube. Made from high-denier nylon with a polyurethane coating, this bag keeps whatever you have stored safe and secure during the entire trip, with Watershed's proprietary ZipDry seal and rolltop closure that keep your belongings dry. (To keep the ZipDry seal from drying out, Watershed suggests you lubricate the seal with the included 303 Protectant wipe or Armor All on an occasional basis.) Watershed also included a compression strap to give this bag an ideal fit for a wide range of boats.