The Ocean Design Moana Full Foot Fins are great for Spearfishing and Freediving. This fin is characterised by its Thermo-Rubber Foot-Pocket and for the angle between foot-pocket and blade. Unlike traditional fins where the angle between the heel of the foot and the calf of the leg remains when the leg is extended-to-kick, the Moana design accommodates for this anatomical characteristic and ensures maximum efficiency throughout the kicking cycle. This results in optimising the power of the push through the water relative to effort. The use of thermo-rubber of two different stiffness compounds increases comfort over normal full foot pockets. This high quality performance long fin also comes in smaller sizes to accommodate for women.