sizing chart and  foot lengths:

Size 35 = US size 4 = Feet length 22.5cm

Size 36 = US size 5 = Feet length 23cm

Size 37 = US size 6 = Feet length 23.5cm

Size 38 = US size 7 = Feet length 24cm

Size 39 = US size 8 = Feet length 24.5cm

Size 40 = US size 9 = Feet length 25cm

Size 41 = US size 10 = Feet length 25.5cm

Size 42 = US size 11 = Feet length 26cm