Superfeet | U Size Chart
| Letter Size | U.S Men | U.S Womens | U.S Kids |
|---|---|---|---|
| A | - | - | 13.5 - 2 |
| B | - | 4.5 - 6 | 2.5 - 4 |
| C | 5.5 - 7 | 6.5 - 8 | - |
| D | 7.5 - 9 | 8.5 - 10 | - |
| E | 9.5 - 11 | 10.5 - 12 | - |
| F | 11.5 - 13 | 12.5+ | - |
| G | 13.5 - 15 | + | - |
| H | 15.5 - 17 | - | - |
| Letter Size | U.S Men | U.S Womens | U.S Kids |
|---|---|---|---|
| A | - | - | 13.5 - 2 |
| B | - | 4.5 - 6 | 2.5 - 4 |
| C | 5.5 - 7 | 6.5 - 8 | - |
| D | 7.5 - 9 | 8.5 - 10 | - |
| E | 9.5 - 11 | 10.5 - 12 | - |
| F | 11.5 - 13 | 12.5+ | - |
| G | 13.5 - 15 | + | - |
| H | 15.5 - 17 | - | - |
