| XXS | XS | S | M | L | XL | XXL | |
| Men's/Unisex | 6.75 - 7.25" 17.1 - 18.4 cm | 7.25 - 7.75" 18.4 - 19.7 cm | 7.75 - 8.25" 19.7 - 21 cm | 8.25 - 8.75" 21 - 22.2 cm | 8.75 - 9.25" 22.2 - 24 cm | 9.25 - 9.75" 23.5 - 24.8 cm | |
| Women's | 5.75 - 6.25" 14.6 - 15.9 cm | 6.25 - 6.75" 15.9 - 17.1 cm | 6.75 - 7.25" 17.1 - 18.4 cm | 7.25 - 7.75" 18.4 - 19.7 cm | 7.75 - 8.25" 19.7 - 21 cm |