The Powershape Carbon-15 sole, with a stiffness index of 15.0, is made from 100% unidirectional carbon fibers and is equipped with the Powershape system at the arch, ensuring 100% power transfer to the pedals. Compatible with NW Speedplay/Wahoo adapters for the smallest distance between foot and pedal. The upper shoe features ARS (Anatomic Reticular Support) technology, an exoskeleton made of PU that surrounds the foot and evenly distributes pressure while pedaling. It has a double SLW3 dial closure, the only closure system that allows for incremental loosening at the push of a button. On hot days, excess heat is released through the mesh insert.