Measurement is around the widest part of the rib cage.
In between sizes? Choose the larger size.
| Girth | Size |
|---|---|
| 9 - 13 in (23 - 33 cm) | XXXS |
| 13 - 17 in (33 - 43 cm) | XXS |
| 17 - 22 in (43 - 56 cm) | XS |
| 22 - 27 in (56 - 69 cm) | S |
| 27 - 32 in (69 - 81 cm) | M |
| 32 - 42 in (81 - 107 cm) | L/XL |