Powerstep Size Guide
| PowerStep Size | Men’s Shoe Size | Women’s Shoe Size |
| ASM | 3-3.5 | 5-5.5 |
| A | 4-4.5 | 6-6.5 |
| B | 5-5.5 | 7-7.5 |
| C | 6-6.5 | 8-8.5 |
| D | 7-7.5 | 9-9.5 |
| E | 8-8.5 | 10-10.5 |
| F | 9-9.5 | 11-11.5 |
| G | 10-10.5 | 12 |
| H | 11-11.5 | |
| I/J | 12-13 | |
| K | 14-15 | |
| L | 16+ |
| PowerStep Size | Men’s Shoe Size | Women’s Shoe Size |
| ASM | 3-3.5 | 5-5.5 |
| A | 4-4.5 | 6-6.5 |
| B | 5-5.5 | 7-7.5 |
| C | 6-6.5 | 8-8.5 |
| D | 7-7.5 | 9-9.5 |
| E | 8-8.5 | 10-10.5 |
| F | 9-9.5 | 11-11.5 |
| G | 10-10.5 | 12 |
| H | 11-11.5 | |
| I/J | 12-13 | |
| K | 14-15 | |
| L | 16+ |