Carbon XC 12 sole with a fully carbon insert in the pedal area and a stiffness index of 12.0. TPU inserts at strategic points provide high traction and exceptional wear resistance. The BioMap unibody construction upper has a more anatomical and wrapping design that minimizes energy loss to the pedals. Thermo-welded TPU reinforcements for additional protection. Double SLW3 dial, the only dial with step-by-step adjustment and full release in a single button for optimal pressure distribution. The Performance Regular insole offers better support.