Like its regular model, the Shimano RC703 Wide Cycling Shoe brings unmatched comfort, stability, and pedaling efficiency to our race-day performance but with more space inside. Combining a carbon fiber outsole, low stack height midsole, and Power Zone lace guides reduces the shoe's weight while increasing pedaling stability and efficiency, while the strategically placed perforations on the synthetic leather upper keep our feet cool with optimized ventilation. For a dialed-in, personalized fit, all we have to do is twist the BOA Dual Zone L6Z dials, adjust the lace guides, and find our way to the top step.