Joules Size Guide
| UK | EU | US |
|---|---|---|
| 3 | 36 | 5 |
| 4 | 37 | 6 |
| 5 | 38 | 7 |
| 6 | 39 | 8 |
| 7 | 40 | 9 |
| 8 | 42 | 10 |
| 9 | 43 | 11 |
Men's
| UK | EU | US |
| 7 | 41 | 8 |
| 8 | 42 | 9 |
| 9 | 43 | 10 |
| 10 | 44 | 11 |
| 11 | 45-46 | 12 |
| 12 | 47 | 13 |
Women's Slippers
| UK | EU | US |
|---|---|---|
| Small : 3/4 | Small : 36/37 | Small : 5/6 |
| Medium : 5/6 | Medium : 38/39 | Medium : 7/8 |
| Large : 7/8 | Large : 40/41 | Large : 9/10 |
Men's Slippers
| UK | EU | US |
|---|---|---|
| Small : 7/8 | Small : 41/42 | Small : 8/9 |
| Medium : 9/10 | Medium : 43/44 | Medium : 10/11 |
| Large : 11/12 | Large : 45/47 | Large : 12/13 |