The Ultimate River Tube by Hardcore® is the ideal solution for and Hardcore tubing enthusiast! Welded, triple layer reinforced PVC shell pumps up just like a whitewater raft and is made out of the same materials as our whitewater rafts and inflatable kayaks. C7 style valves. Pumps sold separately. Diminishing size outer tube allowing for better paddling or fishing position while making it easier to re-enter the tube from the water. The center seat leaves plenty of room for big guys. Drain holes on the seat perimeter allow water to pass freely through the center of the tube while providing superior abrasion resistance. Grip handles are placed intuitively on each side of the rider, while this patent pending seven-sided float provides obvious position for head, hands, and feet.