Features of the Louis Garneau Chrome Shoe Ergo Air II reinforced nylon Outsole with patented multivent system Thermobonded HRS-80 Provides heel support Offset straps Synthetic leather and cycling mesh Upper Cool Stuff insole with improved arch support and ventilation Velcro closure straps Heel reflector Cleat position indicator compatible with SPD-SL, SPD, Time, Look Speedplay cleats with shims (F-4, R-4)