Combining science and speed for the performance swimmer\nWorking smart is an important as working hard. Constructed from optimum materials and based on the science behind swimming, Speedo Aqualab have worked with world-class Team Speedo athletes to create a range of ergonomically designed Fastskin training aids. The Fastskin Kickfin create water resistance forcing your legs to work harder and go faster.\n\n- Ergonomic and comfortable - made 3D flex foot scan technology for the perfect fit\n- Shorter blades for faster kicks and greater power in the water\n- Lightweight