Happy Sox Unisex Sizing
| Happy Socks Size | 9 - 11 | 10 - 13 |
| US Men | 4.5 - 7.5 | 8 - 12 |
| US Women | 5.5 - 9.5 | 10 - 12.5 |
| UK Men | 4 - 7 | 7.5 - 11.5 |
| UK Women | 3.5 - 6.5 | 7 - 11 |
| Europe | 36 - 40 | 41 - 46 |
| Japan | 21 - 24.5 | 25 - 29 |
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| Happy Socks Size | 9 - 11 | 10 - 13 |
| US Men | 4.5 - 7.5 | 8 - 12 |
| US Women | 5.5 - 9.5 | 10 - 12.5 |
| UK Men | 4 - 7 | 7.5 - 11.5 |
| UK Women | 3.5 - 6.5 | 7 - 11 |
| Europe | 36 - 40 | 41 - 46 |
| Japan | 21 - 24.5 | 25 - 29 |
