The Hyperspeed sock is the first performance sock designed for SIM Racing to be used without shoes. It was designed for the SIM Racer looking for the ultimate in pedal feel. The Hyperspeed sock has a nylon microfiber construction for maximum comfort and breathability. The heel is reinforced with Cordura for durability and the outer foot features a printed pattern for grip on the pedals. The Hyperspeed includes a removable insole which gives extra support.