The X-Stream diving fins have a blade length that varies from 34.5 to 38 cm depending on the size. The fins have an open foot pocket. They are made of innovative, high-performance materials and provide superior thrust while minimising leg fatigue. The materials used are 3 specific ones for maximum elasticity, high durability and resistance to wear. The special channel thrust system creates a channel geometry capable of moving more water and creating more thrust with the same amount of effort. The result is an ultra-high performance fin designed for the most demanding divers. The newly designed foot pocket has large perforations (which prevent the so-called "parachute effect") and the joints at the junction with the blade absorb kinetic energy. The blade, with its extremely wide central flap, ensures a strong channelling effect in accordance with the Superchannel principle.