Lighter and higher performing the new Sidi MTB sole is made of nylon with PU inserts. The shape of the inserts has been designed for mountain biking, providing excellent grip, facilitating mud dispersion and giving the right stability . The central insert marked with the Sidi logo acts as an anti-slip, especially useful for less experienced riders. The toe cap, the area of greatest wear (especially) when walking, can be replaced with screws and always offers the option to mount cleats to improve traction on particularly muddy terrain. The SR17 represents the ultimate result in terms of pedaling stiffness and walking flexibility.