Size Chart: Sirchie
| English | Metric | |
|---|---|---|
| Universal | 6.5" - 7 5/8" | 16.5 cm - 19.4 cm |
| X-Large | 7.75" - 8 1/8" | 19.7 cm - 20.6 cm |
| Jumbo | 8.25" - 8.5" | 20.9 cm - 21.6 cm |
| English | Metric | |
|---|---|---|
| Universal | 6.5" - 7 5/8" | 16.5 cm - 19.4 cm |
| X-Large | 7.75" - 8 1/8" | 19.7 cm - 20.6 cm |
| Jumbo | 8.25" - 8.5" | 20.9 cm - 21.6 cm |