The RD SYDRIX PRO's disc closure system saves crucial seconds so you can be out riding faster than ever. With its asymmetrical design, the SYDRIX PRO distributes pressure optimally across the foot, even when you're pushing max watts. The black'n'white colourway goes with any outfit to transcend kit-matching concerns, while dirt is kept at bay by the dirt-repellent upper which hides a breathable tongue to prevent heat build-up.