To find the best size for your UV Shirt, measure under the arm across the front of your chest.
| Sizing | Chest | Waist | Arm Length |
| inches | inches | inches | |
| XS | 30″-33″ | 24″-27″ | 31.25″ |
| SM | 33″-36″ | 28″-30″ | 32.25″ |
| MED | 36″-39″ | 31″-33″ | 33.5″ |
| LG | 39″-42″ | 34″-37″ | 34″ |
| XLG | 43″-45″ | 37″-40″ | 34.75″ |
| 2XLG | 46″-48″ | 40″-43″ | 35.75″ |
| 3XLG | 49″-52″ | 43″-46″ | 36.5″ |
