| Size | EU Size | UK Size |
|---|---|---|
| S | 48 | 38-40" chest |
| M | 50 | 40-42" chest |
| L | 52 | 42-44" chest |
| XL | 54 | 44-46" chest |
| 2XL | 56 | 46-48" chest |
| 3XL | 58 | 48-50" chest |
Outlast Temperature Regulation stores and releases body heat. It works to keep the wearer’s temperature not too hot... not too cold... but just right, over a broad range of environments and activity levels.
