Please find sizing specific to Asics and Onitsuka Tiger below:
UNISEX
| US MENS | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| US WOMENS | 5.5 | 6.5 | 7.5 | 8.5 | 9.5 | 10.5 | 11.5 | 12.5 | 13.5 | 14.5 | 15.5 |
| UK | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| EU | 36 | 37.5 | 39 | 40 | 41.5 | 42.5 | 44 | 45 | 46.5 | 48 | 49 |
MEN
| US | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| UK | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| EU | 36 | 37.5 | 39 | 40 | 41.5 | 42.5 | 44 | 45 | 46.5 | 48 | 49 |
WOMEN
| US | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| UK | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| EU | 35.5 | 36.5 | 38 | 39 | 40.5 | 41.5 | 43 |
KIDS - YOUTH
| US | 11 | 12 | 13 | 1 | 2 | 3 |
| UK | 10 | 11 | 12 | 13 | 1 | 2 |
| EU | 28.5 | 30 | 31.5 | 32.5 | 33.5 | 35 |
KIDS - TODDLER
| US | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| UK | 3 | 4 | 5.5 | 6.5 | 7.5 | 8.5 | 9.5 |
| EU | 19 | 20 | 22 | 23.5 | 25 | 26 | 27 |