Size Guide
| US & CA | EU | UK |
Inside Circumference (in) |
Inside Diameter (mm) |
| 5 | 49 | J | 1.96 | 15.8 |
| 6 | 51 | L | 2.05 | 16.5 |
| 7 | 54 | N | 2.15 | 17.3 |
| 8 | 56 | P | 2.24 | 18.2 |
| 9 | 60 | R | 2.36 | 19.0 |
| 10 | 63 | T | 2.46 | 19.8 |
| 11 | 66 | V | 2.56 | 20.6 |
| 12 | 68 | X | 2.66 | 21.5 |
| US & CA | EU | UK |
Inside Circumference (in) |
Inside Diameter (mm) |
| 5 | 49 | J | 1.96 | 15.8 |
| 6 | 51 | L | 2.05 | 16.5 |
| 7 | 54 | N | 2.15 | 17.3 |
| 8 | 56 | P | 2.24 | 18.2 |
| 9 | 60 | R | 2.36 | 19.0 |
| 10 | 63 | T | 2.46 | 19.8 |
| 11 | 66 | V | 2.56 | 20.6 |
| 12 | 68 | X | 2.66 | 21.5 |