Choose code method: foot length = shoe inside long (fat foot increases according to actual situation appropriately)

21/ shoes are about 11.5cm 22/ in length, 12cm 23/ in shoes and 12.5cm in shoes

24/ shoes are about 13cm 25/ in length, 13.5cm 26/ in shoes and 14cm in shoes

27/ shoes inside about 14.5cm 28/, shoes inside about 15cm 29/, shoes inside about 15.5cm 30/, shoes about 16CM 31/, shoes inside about 16.5CM 32/, shoes inside about 17CM

Manual measurement of +-2mm error exists