This is the OceanPro Mako Open Heel Adjustable Scuba Diving Fins Features: New universal fin strap design Flexible center channel accelerates water over the blade for improved efficiency The Mako blade's flexible center area creates a massive water channel by utilizing the entire surface area of the blade and foot pocket The engineered channels and side rails direct water flow off the tips of the fin without allowing water to spill" from the sides of the blade for uncompromising power and efficiency A series of High Performance Vents reduce stress while accelerating water over the blade Oversized blade produces increased thrust and propulsion Extremely lightweight for increased performance and ease of travel Generous yet streamlined foot pocket fits a wide range of boot styles while significantly reducing drag Easy adjust quick-release buckles These are fantastic fins for you to use on your next water adventure "
