The Mavrex Fitness Trainer is totally new product developed by Mokan the small company with big ideas. At Mokan we build products that we love and use. We developed The Mavrex so that we could build our endurance in the ocean when we're out of the water. If you use your Mavrex regularly, you'll build and improve your surfing and swimming fitness. By recreating the exact movement your body goes through you will build your endurance and swim faster for longer or catch more waves and have more fun! At last there is an answer to surf endurance training that doesn't cost the earth but targets the exact muscles you need to stay surfing stronger and longer than ever before.