Jacket size is driven by your chest measurement. Measure over a light layer for an everyday fit, or size up for heavy mid-layers.
| Your chest | Recommended size |
|---|---|
| Chest under 86 cm (about 34 in) | XS jacket |
| Chest 86 to 94 cm (about 34 to 37 in) | S jacket |
| Chest 94 to 102 cm (about 37 to 40 in) | M jacket |
| Chest 102 to 110 cm (about 40 to 43 in) | L jacket |
| Chest 110 to 118 cm (about 43 to 46 in) | XL jacket |
| Chest 118 cm and up (about 46 in and up) | XXL jacket |
| Layering a thick mid-layer | Size up one chest range. |
| Athletic / broad shoulders | Choose the size that fits the chest, then check shoulder seams. |
| Slim fit preference | Pick the lower end of the range. |