Voit's Legendary UDT Fins are back! Featuring a slim profile, the fins are lightweight and self-floating, with universal foot pockets.UDT Voit Fins are nothing less than high-quality. This legendary fin is constructed from dual-density rubber with a soft rubber foot pocket and a stiff blade. Non-marking and full-floating, this fin is hydro-dynamically designed for greater propulsion with minimal effort. Ideal for surfing, swimming, snorkeling, and bodyboarding.