| Size | Men's | Women's | Kids' |
| S | 6.5 - 7.5" | 6.5 - 7" | 6.6 - 7" |
| 16.5 - 19cm | 16.5 - 18cm | 16.9 - 17.8cm | |
| M | 7.5 - 8.5" | 7 - 7.5" | 7 - 7.3" |
| 19 - 21.5cm | 18 - 19cm | 17.8 - 18.5cm | |
| L | 8.5 - 9.5" | 7.5 - 8" | 7.3 - 7.7" |
| 21.5 - 24cm | 19 - 20cm | 18.5 - 19.5cm | |
| XL | 9.5 - 10.5" | ||
| 24 - 27cm |