Not every rider wants a completely rigid shoe all the time, and if endurance is more your thing then comfort is going to be as big a factor as power transfer. That's what makes the Ksyrium Pro such a good choice. The carbon composite outsole provides excellent rigidity when you do need to step on the power, but it also allows your feet to move naturally throughout your ride. Meanwhile the Endofit tongue surrounds your foot giving you what we call The Glove Effect. This 'glove' also means the tongue can't move around in the shoe so it won't slide sideways during a ride. And holding everything in place is the Ergo dial lacing system and Ergo strap, which combine to give you great support with easy, accurate adjustment.
Endofit Tongue hugs the foot in just the right places for maximum comfort
Ergo Fit 3D OrthoLite, a specific ergonomic insole delivers superior cushioning and comfort
Energy Carbon Comp Outsole provides stiffness when you push on the pedals/ Index Energy Transfer 60
Ergo Dial system combined with Ergo Strap offer precise foothold with easy, highly accurate adjustment