Measure the circumference of your chest at its widest part - across your chest/bust, just below the armpits and around your back. Then, locate your vestpack on the chart below and use your chest circumference measurement to choose the best size.
| Vestpack Size | Small | Medium | Large |
|---|---|---|---|
| Chest Circumference | 80-89 | 89-98 | 98-108 |