About the choose of size.
Foot length 22.1-23.0(cm) = Size36/37
Foot length 23.1-24.0(cm) = Size38/39
Foot length 24.1-25.0(cm) = Size40/41
Foot length 25.1-26.0(cm) = Size42/43
Foot length 26.1-27.0(cm) = Size44/45