Swimfin is one patented svømmehajfinne, as children can get on back. It ensures buoyancy in water without to inhibit child movement. It is developed of one english swimming instructor, have won many prices, past, the laws dè most children seems, it is right tough to have on in water. There is lifetime warranty on the fin, not on the straps. Hajfinnen fas in different colors. This text is automatic translated, past, the laws there can occur error.