Nylon Imported Riptide are a great value for tubes that feature a wrap around backrest for that "couch-like" ride These tubes are incredibly lively side to side, requiring very little effort from the boat driver to get them to cross the wake Equipped with a kwik connect for easy rope attachments and disconnects 2 rider, 65 inches X 65 inches (Deflated) Two patented speed safety valves provide the ultimate in inflation and deflation convenience