Foot length 22.5cm = Size label 35 = choice 5
Foot length 23cm = Size label 36 = choice 6
Foot length 23.5cm = Size label 37 = choice 6.5
Foot length 24cm = Size label 38 = choice 7
Foot length 24.5 cm = Size label 39 = choice 8
Note: Neither the US Size or European size are based on the feet length, so you only need to accurately measure feet length, and then refer to the size chart to choose the correct size. Correct measurement of foot length is very important.