About the choose of size.
Foot length 21.5-22.5(cm) = Size 34/35
Foot length 22.6-23.5(cm) = Size 36/37
Foot length 23.6-24.5(cm) = Size 38/39
Foot length 24.6-25.5(cm) = Size 40/41
Foot length 25.6-26.5(cm) = Size 42/43
Foot length 26.6-27.5(cm) = Size 44/45.