The Rondine Pro Star is a sleek design that, like the Frog, Space Frog and Pro Light positions the blade on top of the foot pocket for optimum performance. The foot pocket is made of a very soft elastomer material that comfortably wraps around your foot, eliminating any foot cramping that occurs in many fins. The blade is made of high-performance polypropylene material. Designed to be used for Scuba as well as snorkeling, the Pro Star is the perfect choice for the recreational diver. This is a futuristic design, deriving from the Cressi deep sea skin-diving models, which introduces the use of more reactive materials. The blade is made of exceptionally light and reactive. The blade material is combined with a comfortable thermo-rubber (elastomer) for the foot pocket, side rails and for various inserts. The blade originates from the upper part of the foot pocket, with a 20% increase in useful surface area compared to a traditional fin of the same length. The side rails extend along the blade, continuing in a protective seal around the whole blade edge. Two stabilizing flaps on the end of the blade and on the sole of the foot, guarantee excellent stability of the fin during kicking. The excellent, highly anatomic, computer designed foot pocket, provides optimum transmission of leg fin thrust. The resulting combination of materials is a formidable product that makes kicking easier and powerful at the same time. Pro Star model is one of the most powerful full foot fins in the Cressi range and is an excellent choice for snorkeling, skin diving and Scuba divers. Fin is available in multiple sizes and colors. Fin measure from (L x W) 23.64″ to 27″ x 7.9″ to 8.67″ (60 cm to 68.5 cm x 20 cm x 22 cm) and weigh from 40.57 oz. to 55.73 oz. (1,150 g to 1,580 g).