Humphrey Law Extra Wide Socks
| Size | Women's Australian/UK shoe size | Men's Australian/UK shoe size | EU Size | Foot Length |
| Extra Wide Small | 3-8 | 4.5-6 | 35-41 | 22-26 cm |
| Extra Wide Medium | 8-11 | 7-10 | 40-45 | 25-29 cm |
| Extra Wide Large | 10-13 | 46-51 | 30-35 cm | |
| Extra Wide & Long | 13-16 | 50-55 | 36-39 cm | |
| Extra Wide & Extra Long | 14+ | 55+ | 38-45 cm |
