Alpha Fins will help you build true swimming-specific leg strength while improving your kicking technique, body position and ankle flexibility. Alpha Fins are the only swim fins to be manufactured with injection molded, ultra soft EVA foam, making them 70% lighter than traditional swim fins with provide unparalleled comfort. Due to the buoyancy of the material, these fins improve swimmers' body position while activating their kick.  Features: Provides isolated leg workoutBuoyancy improves body positionWater channels provide stability and maximum power transferDedicated right and left fins with full arch supportMade of non-waterlogging, EVA foam