4T2 is an English brand. It fits reasonably well like most European brands. If you can't figure it out, you can measure your feet on an A4 sheet. Take half a centimeter extra for some space.
All models have gender neutral sizing/fit.
Size chart 4T2
CM | EU | UK | US | UK | US |
Uni | M | M | V | V | |
24 | 38 | 4.5 | 5.5 | 5 | 7 |
24.5 | 39 | 5 | 6 | 5 .5 | 7 .5 |
25 | 39.5 | 5 .5 | 6 .5 | 6 | 8 |
25.2 | 40 | 6 | 7 | 6 .5 | 8 .5 |
25.5 | 40.5 | 6 .5 | 7 .5 | 7 | 9 |
26 | 41.5 | 7 | 8 | 7 .5 | 9 .5 |
26 | 42 | 7 .5 | 8 .5 | 8 | 10 |
27 | 42.5 | 8 | 9 | 8 .5 | 10.5 |
27.5 | 43.5 | 8 .5 | 9 .5 | 9 | 11 |
28 | 44 | 9 | 10 | 9 .5 | 11.5 |
28.2 | 44.5 | 9 .5 | 10 .5 | 10 | 12 |
28.5 | 45 | 10 | 11 | 10.5 | 12.5 |
29 | 46 | 10.5 | 11.5 | 11 | 14 |
30 | 47 | 11.5 | 12.5 | 12 | 14 |
31 | 48 | 12 | 13 | 12.5 | 15 |