size 36=US size 5 = feet lenght 23CM

size 37=US size 6 = feet lenght 23.5CM

size 38=US size 7 = feet lenght 24CM

size 39=US size 8 = feet lenght 24.5CM

size 40=US size 9 = feet lenght 25CM

size 41=US size 10 = feet lenght 25.5CM