Nylon Imported 1 rider tube for boating and watersports Fully Covered: Entire tube is covered with our double stitched nylon to ensure both comfort and years of use Bolster Fins: Helps keep you on the tube, even during the wildest rides Kwik-Connect: Our one-of-a-kind tow system lets you quickly and easily connect your tube to the rope Patented Speed Safety Valve: Patented simple valve for quick and easy inflating and deflating