Built for the modern everyday rider, the Prima Road Shoe from SIDI is a treat to wear and easy to adjust thanks to its Firmor closure system and lightweight upper that cuts down on fatigue. The low-profile carbon nylon Aerolite sole brings us stiff, efficient power transfer when we're sprinting, yet maintains enough flex for comfort on longer rides. The Single Tecno-3 System ensures we get a perfect fit with a dial running the length of the shoe, adapting to the instep for a custom fit, and the replaceable polyurethane heel pad offers comfortable walking once we're off the bike.