Non-removable mesh floor option adds security and support Tough PVC inner bladder inflates and deflates through a reliable C7 valve Durable urethane-coated polyester bottom reinforcements for extra protection in shallow water Nylon upper cover increases against-the-skin comfort Reinforced stainless D-ring makes creating a party barge super easy NRS Wild River Float Tube - Let the NRS Wild River Float Tube transport you to a peaceful place relaxing and drifting with the current on a lazy-flowing stream. The super durable, urethane-coated polyester reinforces the bottom of the tube for extra protection in shallower waters so you can enjoy that perfect summer day float!