The Power Plana is the ideal fin for the tech diver. Made of nearly indestructible natural rubber, this high performing vented open heel fin is ideal for all kinds of kicks. The high-density material makes the fin negatively buoyant, a desired feature when using a dry suit and a tech rig with steel back plate. The patented bungee strap with large finger loop is the best solution for both comfort during the dive and when donning /doffing. The ribbed blade channels the water down the blade surface for maximum thrust with minimum effort. Unlike competitors’ fins, the Mares rubber fin offers a full shape foot pocket. Fins are available in multiple sizes and is black in color. The size regular has a blade length of 10.8″ (27.5cm), weighs 2.9 lbs. (1.32 kg) with a blade thrust area of 93 cubic inches (600 cubic centimeters).