When trying to decide between two sizes, choose the larger size for a better fit.
| Small (4-6) | 26 | 23.5 | 26 | 19-20 | 48-49.5 | |
| Medium/OSFM (7-8) | 26.5 | 24.5 | 27.5 | 21- 23 | 50- 53.5 | |
| Extra Large (10H- 12H) | 28 | 26.5 | 30 | 24-25 | 54-58.5 | |
| Tween (14-16) | 31 | 29 | 33 | 26 - 27 | 59 - 64 | |
| Child Boy One Size (OS) | 23 - 25 | 21 - 22 | 23 - 25 | 16 - 19 | 39 - 47 | |
| Inflatable (OSFM) | 23-26.5 | 21-24.5 | 23-27.5 | up to 23 | up to 53.5 | |
| *in inches | | | | | | |
