List price $33.25 (around 5,000 yen in Japan) New and unused. Type: Open heel type. The heel is open and the size can be adjusted with straps. ( • Material: Generally, high-quality PP (polypropylene) and TPR (thermoplastic rubber), which are lightweight and flexible, are used. • Design: Designed to reduce water resistance and generate propulsion with less effort. ◎ • Uses: Used for scuba diving and snorkeling.