This road premium is the best choice for professional cyclists! A combination of high-tech, innovative features and exceptional design. These shoes promise ultimate comfort and direct power transfer. - absolutely stiff, super-light Hmx Carbon Sole l for direct power transfer (stiffness index 10), cooling Ram-air ventilation system and replaceable Tpu heel tread- the Power Zone sole construction minimises forces exerted on knee and ankle - dual-zone Boa Ip-1 quick lacing system with perfect micro adjustment in both directions at instep and metatarsus - the Ergologic footbed with 4-fold density provides a Poron shock damping system and variable panels for support of instep and metatarsus - super-light, perforated and very flexible microfibre + 3d Airmesh upper material- comfortable Ergologic Wrap Fit upper construction with one layer made from imitation leather that hugs your foot like a second skin and prevents pressure points - asymmetrical, close Racing-fit for increased foot support - compatible with all Rr pedal systems- Weight: 255 g (size 42