The TUSA HyFlex SWITCH Pro offers a 20% stiffer blade compound for the advanced diver. Powered by PuRiMaX Polyurethane Blade System. The Polyurethane blade provides a quick snappy response to the diver's every movement. TUSA's unique Vortex Generator effectively reduces water resistance through the fin stroke normally found on traditional smooth blades. TUSA's 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. Powered by PuRiMaX Polyurethane Blade System. Vortex Generator. Performance enhancing Comfort Foot Pocket. Multi-compound foot pocket increases power transfer to the fin blade. Standard with Universal Bungee Strap (TA0902). Offset Blade Design. TUSA Hyflex System for a compact and lightweight travel package.