| Gaiter Size | S | S | S | M | M | M | L | L | L | XL | XL | XL |
| US | UK | Euro | US | UK | Euro | US | UK | Euro | US | UK | Euro | |
| Men's Boot Size | 5 - 7 | 4.5 - 6.5 | 37.5 - 40 | 7 - 9 | 6.5 - 8.5 | 40 - 42.5 | 9 - 11 | 8.5 - 10.5 | 42.5 - 45 | 11 - 14 | 10.5 - 13.5 | 45 - 49 |
| Women's Boot Size | 5 - 7.5 | 2.5 - 5 | 35 - 38 | 7.5 - 10 | 5 - 7.5 | 38 - 42 | 10 - 12 | 7.5 - 9.5 | 42 - 44 |