Size Guide
| Size | Inside Diameter in mm (Approx) |
|
|
| XS | 16 - 16.5 | J - K | 5 |
| S | 16.5 - 17 | L - M | 6 |
| M | 17.5 - 18 | N - O | 7 |
| L | 18 - 18.5 | P - Q | 8 |
| Size | Inside Diameter in mm (Approx) |
|
|
| XS | 16 - 16.5 | J - K | 5 |
| S | 16.5 - 17 | L - M | 6 |
| M | 17.5 - 18 | N - O | 7 |
| L | 18 - 18.5 | P - Q | 8 |