The Morph 10 AAS composite fiber sole features a stiffness index of 12.0. The exclusive Adaprive Arch Support made of TPU allows the shoe to adapt perfectly to the arch of the foot. The ideal sole for every foot! In addition, the sole is compatible with NW Speedplay Adapter for less distance between foot and pedal. The unibody construction combines large and strategically placed mesh inserts with ultra-thin reinforcements. The result is very good breathability and ventilation with maximum stability at the same time. The asymmetrical lacing distributes the pressure on the back of the foot and guides it perfectly around the entire foot. The Performance Regular footbed provides more support from below. The SLW2 Dial - the only one with gradual loosening or complete opening at the touch of a button - ensures easy access and a perfect fit.