US / 4.5 = 34 = Foot length about 22 cm-22.5cm
US / 5 = 35 = Foot length about 22.5 cm-23cm
US / 5.5 = 36 = Foot length about 23 cm-23.5cm
US / 6 = 37 = Foot length about 23.5 cm-24cm
US / 6.5 = 38 = Foot length about 24 cm-24.5cm
US / 7 = 39 = Foot length about 24.5 cm-25cm
US / 7.5 = 40 = Foot length about 25cm-25.5cm
US / 8 = 41 = Foot length about 25.5 cm
US / 8.5 = 42 = Foot length about 26 cm
US / 9 = 43 = Foot length about 26.5 cm