Shimano xc70 mtb spd shoespower to the pedal with shimano engineered stability rigidity in a light weight off road design features upper heat moldable custom fit technology tough synthetic leathers provide great protection excellent durability anti slip heel material to prevent heel lift low profile micro adjust buckle securely holds foot with reduction impact cross x strap is optimized for relieving tension on top of foot during push off motion insole custom fit insole heat moldable insol