Optimized for a cool, comfortable, and efficient ride, Shimano's RC703 Cycling Shoe is ready to head to the starting line with us. The supple synthetic leather upper with strategically placed perforations offers the necessary ventilation to keep our feet cool as the pace heats up, and the carbon fiber outsole provides a stable platform that ensures a direct power transfer when it's time to sprint. For a snug, personalized fit, we simply twist the BOA(R) Fit System featuring Dual Zone L6Z dials, adjust the Power Zone lace guides, and focus on nothing but winning.