The Gara 2000 HF is the first fin in the world made by combining three different materials, a process that Cressi perfected and patented. This process guarantees unsurpassed performance. The blade is made from a special reactive polypropylene, which is extremely light, and has a blade snap that progressively charges during the fining upward stride to react like a spring at the exact moment the stride is inverted. This development in fin construction gives the diver increased thrust required to keep up with their prey. A soft elastomer foot pocket anatomically wraps around the foot, surrounding it with a comfortable bite that guarantees perfect transmission of the leg-fin thrust. A solid copolymer hardens some critical zones of the foot pocket and extend along the sides of the foot pocket in two lateral stringers that go halfway down the blade, assisted by special raised bands on the bottom of the blade, these stringers function, is to regulate and harmonize the bending of the blade, at the same time protecting it from shocks and abrasions. The fins are extremely lightweight compared to equivalent models of rubber full foot fins. This light- weightiness reduces the inertial masses to the minimum allowing less resistance to acceleration when needed. This gives the full advantage of the effort-efficiency ratio. This fin is designed for deep skin-diving, although Scuba professionals and instructors appreciate its efficiency also. Fins are available in US Sizes 7