Jack Adams™ underwear and shorts/pants sizing is measured at the waist. To find your correct waist size, measure your torso about one inch below the belly button. To find your size in all of our tops and hoodies, measure your chest around, at approximately one inch below your arm pit.
Size Chart - INCHES
| SIZES (inches) | S | M | L | XL | XXL |
| CHEST | 35-37 | 38-40 | 41-43 | 44-47 | N/A |
| NECK | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 | N/A |
| WAIST | 27-29 | 30-32 | 33-35 | 36-38 | 38-43 |
Size Chart - METRIC
| SIZES (cm) | S | M | L | XL | XXL |
| CHEST | 89-94 | 97-101 | 104-109 | 112-118 | N/A |
| NECK | 36-37 | 38-39 | 41-42 | 43-44 | N/A |
| WAIST | 69-73 | 76-81 | 84-89 | 91-97 | 97-109 |