39THIRTY Size Chart
| Circumference | Cap Size | |||
|---|---|---|---|---|
| (cm) | (in) | |||
| 54.9 | 21 5/8 | Small - Medium | ||
| 55.8 | 22 | |||
| 56.8 | 22 3/8 | |||
| 57.7 | 22 3/4 | Medium - Large | ||
| 58.7 | 23 1/8 | |||
| 59.6 | 23 1/2 | |||
| 60.6 | 23 7/8 | Large - X Large | ||
| 61.5 | 24 1/4 | |||
| 62.5 | 24 5/8 | |||
| 63.5 | 25 | |||
| Circumference | Cap Size | |||
|---|---|---|---|---|
| (cm) | (in) | |||
| 54.9 | 21 5/8 | Small - Medium | ||
| 55.8 | 22 | |||
| 56.8 | 22 3/8 | |||
| 57.7 | 22 3/4 | Medium - Large | ||
| 58.7 | 23 1/8 | |||
| 59.6 | 23 1/2 | |||
| 60.6 | 23 7/8 | Large - X Large | ||
| 61.5 | 24 1/4 | |||
| 62.5 | 24 5/8 | |||
| 63.5 | 25 | |||