Pearl Izumi X-ALP Summit Mountain Shoe 39 Grey/BlackPearl Izumi X Alp Summit Mountain Shoe for performance on the Trail. The L6 BOA® Fit System allows aggressive riding with custom fit to the foot. The synthetic leather upper improves ventilation and allows your feet to dry out after creek crossings or Spin Class workouts. With a Vibram ECOSTEP outsole increases stiffness, reinforced toe box provides impact protection. SPD Compatible.191234723183