Size 5=35 fit for foot length is 22.5cm.
Size 6=36 fit for foot length is 23cm.

Size 7=37 fit for foot length is 23.5cm.

Size 8=38 fit for foot length is 24cm.

Size 9=39 fit for foot length is 24.5cm.

Size 10=40 fit for foot length is 25cm.

Size 11=41 fit for foot length is 25.5cm.
Size 12=42 fit for foot length is 26cm.