Men's Double R Size Chart
| Size | Body Length | Sleeve Length | Chest Width |
| S | 30.5" | 4.375" | 21" |
| M | 31.5" | 4.5" | 22" |
| L | 32.5" | 4.625" | 23" |
| XL | 33.75" | 4.875" | 24.5" |
| 2XL | 35" | 5.125" | 26" |
*Flat Measurements
| Size | Body Length | Sleeve Length | Chest Width |
| S | 30.5" | 4.375" | 21" |
| M | 31.5" | 4.5" | 22" |
| L | 32.5" | 4.625" | 23" |
| XL | 33.75" | 4.875" | 24.5" |
| 2XL | 35" | 5.125" | 26" |
*Flat Measurements