Sizing Chart Under Armour Shirt Sizing
Senior Sizing
| Size | Chest Size (in.) | Waist Size (in.) |
| Small | 34" - 36" | 28" - 29" |
| Medium | 38" - 40" | 30" - 32" |
| Large | 42" - 44" | 34" - 36" |
| X-Large | 46" - 48" | 38" - 40" |
| XX-Large | 50" - 52" | 42" - 44" |
| XXX-Large | 52" - 54" | 44" - 46" |
| XXXX-Large | 54" - 56" | 46" - 48" |
| XXXXX-Large | 56" - 58" | 48" - 50" |