Please use the vendor size chart to determine the EU to US size conversion. Please be aware that there may be some inconsistencies in the US sizing conversion indicated in the shoe tongue label * the EU size is accurate, but the US conversion may not be. * P.R.O. 1:1 Anatomic buckle closure * Dual density EVA X-Alp outsole and midsole with firmer second density EVA between pedal and foot for off-the-bike cushioning and comfort and on-the-bike power transfer * Compatible with SPD and all Look pedal systems * Quick drying, highly breathable synthetic mesh upper delivers comfort and breathability