Cressi Pro Star Dive Fins | Black | 2021 PRO STAR is a fin, derived from the Cressi’s apnea professional models, that introduces on the medium-length foot pocket fins’ market the usage of especially reactive materials of professional level. The result is a fin of muscular design with reduced dimensions, a surprising nerve and a great propulsive performance. It’s an excellent combination between resistance, power, comfort and aesthetics. Pro Star is the most powerful foot pocket fin of the Cressi range (except for the specific deep apnea models) and represents an optimal election for advanced snorkeling, amateur apnea, light diving without boot without sole and underwater hockey. Materials: Main propylene body: this material, inherited from apnea fins, has as main feature the extremely rapid energy transmission applied and its great structural rigidity. Flexible elastomer: it’s applied on the foot pocket and on areas that require flexibility and elasticity, because that influences the diver’s comfort (on the foot pocket’s forefoot, the sole’s interior and the instep area that is in contact with the anckle). “Foot pocket-under-blade design”: The blade arises from the superior part of the foot pocket, linking solidly the fin to the foot and transmitting all the generated effort while flapping without energy loss through soft areas. Decreasing blade side thickness “spina di pesce” to improve the flapping direction and achieve a greater inertia from fin’s end. The inside part of the foot pocket is extremely anatomic due to the fact that it has been designed with effort with computer using loads of measurements to configure the perfect anatomic volumes. It guarantees a perfect strength transmission of leg / foot / blade.