Features- Carbon XC 12 sole with an 100%-carbon-fibre insert in the pedal zone and a stiffness index of 12.0.- TPU inserts strategically positioned on the sole ensure killer traction and abrasion resistance.- A double SLW3 dial allows you to differentiate pressure across the toe area and top of the instep for an accurate comfortable fit.- TPU anti-abrasion reinforcements on the upper provide the shoe with total protection.- Regular Performance footbed for extra bow-arch support- The mesh insert prevents overheating even in the hottest summer weather.- Perforated upper for the utmost ventilation.