| Rainbow Sizing | Standard US Women's Sizing | Length Sizing (in inches) |
| Small | 5.5 - 6.5 | 9.5 |
| Medium | 6.5 - 7.5 | 10 |
| Large | 7.5 - 8.5 | 10.5 |
| X Large | 8.5 - 9.5 | 10.75 |
| L10 | 9.5 - 10.5 | 11 |
| L11 | 10.5 - 11.5 | 11.25 |
| Rainbow Sizing | Standard US Women's Sizing | Length Sizing (in inches) |
| 6 | 6 | 9.5 |
| 7 | 7 | 9.75 |
| 8 | 8 | 10 |
| 9 | 9 | 10.5 |
| 10 | 10 | 10.75 |