| Powerstep Size | Shoe Size |
|---|---|
| A | Women's 6-6.5 |
| B | Women's 7-7.5 |
| C | Men's 6-6.5/Women's 8-8.5 |
| D | Men's 7-7.5/Women's 9-9.5 |
| E | Men's 8-8.5/Women's 10-10.5 |
| F | Men's 9-9.5/Women's 11-11.5 |
| G | Men's 10-10.5/Women's 12-12.5 |
| H | Men's 11-11.5 |
| I/J | Men's 12-13 |
| K | Men's 14-15 |
