Product Info Premium Road Competition Cycling Shoe Optimized For SpeedSpecial Edition colorway of the flagship RC903 shoePremium Road Cycling Shoe: S-PHYRE RC903S is a high performance road racing shoe compatible with SPD-SL cleatsPrecise Fit: dual low-profile BOA® Li2 metal dials deliver quick and precise micro-adjustmentsOptimum Stiffness: reduces energy loss and maximizes power transferAnti-twist Heel Cup: stabilizes heel to help manage the intense twisting forces caused by explosive accelerationBreathable Shoe: lightweight micro-fiber leather upper with perforated venting keeps feet cool during even your sweatiest pursuitsCleats sold separately