| KIDS' SMALL | MEN'S MEDIUM | MEN'S LARGE | WOMEN'S SMALL | WOMEN'S MEDIUM | |
| Men's Boot Size | 4-7 | 7-11+ | 10+ | 3 - 8 | 6 - 9 |
| Women's Boot Size | 5-8 | 8+ | N/A | 4 - 8 | 8+ |
| Euro Boot Size | 35-39 | 39 - 44 | 44+ | 34 - 40 | 40+ |
| UK Boot Size | 3-6 | 6.5 - 10 | 9.5+ | 2.5 - 6.5 | 6+ |
| Mondo Boot Size | 22-25 | 25 - 29 | 28+ | 21 - 24 | 25 |