Size chart
| MM | Inches | USA & Canada | Europe | India | Netherlands Swiss |
| 9.9 | 0.390 | 31.1 | 1.22 | · | 0000 |
| 10.7 | 0.442 | 33.7 | 1.39 | · | 00 |
| 11.5 | 0.454 | 36.2 | 1.43 | · | 0 |
| 12.0 | 0.470 | 37.5 | 1.80 | A | 1/2 |
| 12.2 | 0.479 | 38.3 | 1.51 | A 1/2 | 3/4 |
| 12.4 | 0.487 | 38.9 | 1.53 | B | 1 |
| 12.6 | 0.806 | 39.6 | 1.56 | B 1/2 | 1 1/4 |
| 12.8 | 0.803 | 40.2 | 1.58 | C | 1 1/2 |
| 13.0 | 0.511 | 40.8 | 1.61 | C 1/2 | 1 3/4 |