An excellent choice for divers entering the sport, the Stratos ADJ is easy to kick. The dual-material blade is designed to quickly reach the optimal angle needed to move water quickly and efficiently. This highly durable fin is a popular choice for resort rental programs. Style Full Foot Open Heel Y Power Technology - Power Transmission - Power Zone - V Boosters - Spring Straps - Gear Shift - Travel-Friendly - Ergonomic Buckle - Quick-Release Buckle Y