Size running small, we recommended 1 size bigger

Size Chart

35 = 20,5 cm
36 = 21 - 21,5 cm
37 = 22 cm
38 = 22.5 cm
39 = 23 - 23,5 cm
40 = 24 - 24,5 cm
41 = 25 cm
42 = 25,5 cm
43 = 26 - 26,5 cm