1. Measure your chest
With good posture, wrap a measuring tape under your arms around your back and take the measurement at fullest part of your chest. Be sure to keep the measuring tape parallel to the floor.
| Chest | Length | |
|---|---|---|
| S | 38 | 32 |
| M | 40 | 34 |
| L | 42 | 34 |
| XL | 44 | 36 |
| XXL | 46 | 36 |