Designed for, and used by the world's top Formula One Drivers, Sparco's Prime Evo Racing shoes stands as one of the lightest racing shoes on the market today. Sparco starts with a specially engineered Carbon Fiber sole that runs from the toe box to the heel with the perfect amount of flexibility without compromising stiffness. The minimalist uppers feature a full Velcro closure system for excellent fit, while a padded, stretch panel tongue maintains comfort. Finally, a silicone printed insole increased inner foot traction and pedal feel.