ASICS SIZE - PLEASE NOTE: This style runs small – we recommend choosing one size up for the most comfortable fit.   EU 36 37 37.5 38 39 39.5 40 40.5 41.5 42 42.5 43.5 44 44.5 UK 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 US (Men) 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 US (Women) 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 CM