Joules Size Guide
Footwear - Men's and Women's
| UK | Euro Womens | Euro Mens | US Women | US Mens |
| 3 | 36 | - | 5 | - |
| 4 | 37 | - | 6 | - |
| 5 | 38 | - | 7 | - |
| 6 | 39 | - | 8 | - |
| 7 | 40 | 41 | 9 | 8 |
| 8 | 41 | 42 | 10 | 9 |
| 9 | 42 | 43 | 11 | 10 |
| 10 | - | 44 | - | 11 |
| 11 | - | 45/46 | - | 12 |
| 12 | - | 47 | - | 13 |
Footwear - Men's and Women's
| UK | Euro Womens | Euro Mens | US Women | US Mens |
| 3 | 36 | - | 5 | - |
| 4 | 37 | - | 6 | - |
| 5 | 38 | - | 7 | - |
| 6 | 39 | - | 8 | - |
| 7 | 40 | 41 | 9 | 8 |
| 8 | 41 | 42 | 10 | 9 |
| 9 | 42 | 43 | 11 | 10 |
| 10 | - | 44 | - | 11 |
| 11 | - | 45/46 | - | 12 |
| 12 | - | 47 | - | 13 |