Some 3 person towable tubes are designed for speed; others are built for safety and control in mind. Know who you are buying the tube for. For example,tubes with a cockpit seating are more comfortable for younger kids because they are more enclosed and they feel safer. A low back profile is also easier for them to board from the water and a higher front provides a better view of where they are going. Older adult riders may also prefer the cockpit style seating because of lower back support and comfort. Teenage and young adults tend to prefer three person water tubes that offer speed, trick and spinning ability and forwards and backwards towing.