CAT Workwear Sizing
| UK | US Men | US Women | EUR |
| 3 | 4 | 5 | 36 |
| 4 | 5 | 6 | 37 |
| 5 | 6 | 7 | 38 |
| 6 | 7 | 8 | 39 |
| 7 | 8 | 9 | 41 |
| 8 | 9 | 10 | 42 |
| 9 | 10 | 11 | 43 |
| 10 | 11 | 12 | 45 |
| 11 | 12 | 13 | 46 |
| 12 | 13 | 14 | 47 |
| UK | US Men | US Women | EUR |
| 3 | 4 | 5 | 36 |
| 4 | 5 | 6 | 37 |
| 5 | 6 | 7 | 38 |
| 6 | 7 | 8 | 39 |
| 7 | 8 | 9 | 41 |
| 8 | 9 | 10 | 42 |
| 9 | 10 | 11 | 43 |
| 10 | 11 | 12 | 45 |
| 11 | 12 | 13 | 46 |
| 12 | 13 | 14 | 47 |