| Size | 2X-Small | X-Small | Small | Medium | Large | X-Large |
| US Men's Shoe | 11-2.5 | 3-4.5 | 5-7 | 7.5-9.5 | 10-12 | 12.5-14 |
| US Women's Shoe | 11-2.5 | 3-5.5 | 6-8 | 8.5-10.5 | 11-13 | 13.5-15 |
| EU Shoe | Child | 33-35.5 | 36-38.5 | 39-42.5 | 43-45 | 45.5+ |
| UK Shoe | Child | 1-3 | 3.5-5.5 | 6-8.5 | 9-10.5 | 11-13 |