Size Guide
| SG/HK Sizing | Japan Sizing | US Sizing | Inner Diameter ( mm ) | Inner Circumference ( mm ) |
| 6 | 4 | 3 | 14.1 | 44.3 |
| 7 | 5 | 3.25 | 14.3 | 44.9 |
| 8 | 6 | 3.75 | 14.7 | 46.2 |
| 9 | 7 | 4 | 14.9 | 46.8 |
| 10 | 8 | 4.5 | 15.3 | 48.1 |
| 11 | 9 | 5 | 15.7 | 49.3 |
| 12 | 10 | 5.5 | 16.1 | 50.6 |
| 13 | 11 | 6 | 16.5 | 51.8 |
| 14 | 12 | 6.25 | 16.7 | 52.5 |
| 15 | 13.5 | 6.75 | 17.1 | 53.7 |
| 16 | 14 | 7 | 17.3 | 54.3 |
| 17 | 15 | 7.5 | 17.7 | 55.6 |
| 18 | 16.25 | 8 | 18.2 | 57.2 |
| 19 | 17 | 8.5 | 18.5 | 58.1 |
| 20 | 17.5 | 9.25 | 18.8 | 59.1 |
| 21 | 18 | 9.5 | 19.1 | 60 |
| 22 | 19 | 9.75 | 19.4 | 60.9 |
| 23 | 20 | 10 | 19.8 | 62.2 |
| 24 | 22 | 10.5 | 20.2 | 63.5 |
| 25 | 23 | 11 | 20.6 | 64.7 |
| 26 | 24 | 11.5 | 21 | 66 |
| Size / Inner Diameter ( mm ) | Recommended For Wrist Size ( cm ) |
| 50 | 13 - 14 |
| 52 | 14 - 15 |
| 54 | 15 - 16 |
| 56 | 16 - 17 |
| 58 | 17 - 18 |
| 60 | 18 - 19 |
| 62 | 19 - 20 |