Hello, The EU size and foot length (cm) measurements for the Adidas shoes that we sell are as follows: � � Child (between 22-35): 22 = 13.5 cm 23 = 14 cm 24 = 14.5 cm 25 = 15 cm 26 = 16 cm 27 = 16.5 cm 28 = 17 cm 29 = 18 cm 30 = 18.5 cm 31 = 19 cm 32 = 19.5 cm 33 = 20 cm 34 = 21 cm 35 = 21.5 cm � � Young & Adult (36–55yrs): 36 = 22. 1 cm 36 2/3 = 22. 5 cm 37 1/3 = 22. 9 cm 38 = 23. 3 cm 38 2/3 = 23. 8 cm 39 1/3 = 24. 2 cm 40 = 24. 6 cm 40 2/3 = 25 cm 41 1/3 = 25. 5 cm 42 = 25. 9 cm 42 2/3 = 26. 3 cm 43 1/3 = 26. 7 cm 44 = 27. 1 cm 44 2/3 = 27. 6 cm 45 1/3 = 28 cm 46 = 28. 4 cm 46 2/3 = 28. 8 cm 47 1/3 = 29. 3 cm 48 = 29. 7 cm 48 2/3 = 30. 1 cm 49 1/3 = 30. 5 cm 50 = 31 cm 50 2/3 = 31. 4 cm 51 1/3 = 31. 8 cm 52 2/3 = 32. 6 cm 53 1/3 = 33. 5 cm 54 2/3 = 34. 3 cm 55 2/3 = 35. 2 cm You can measure your foot length in cm and compare to choose the most suitable number. If you wish, if you share your foot size, I can also recommend a special size for you. Respects.