The TUSA SF0104 Hyflex Switch is powered by PuRiMaX Polyurethane Blade System. The Polyurethane blade provides a quick snappy response to the divers every movement. TUSAs unique Vortex Generator effectively reduces water resistance through the fin stroke normally found on traditional smooth blades. TUSAs Multi-compound foot pocket increases power transfer to the fin blade. The TUSA Hyflex Switch is equipped with the new Universal Bungee Strap providing extraordinary comfort.