Men's Port Authority Long Sleeve Shirt Size Chart
| S | M | L | XL | 2X | 3X | |
| CHEST | 35-37 | 38-40 | 41-43 | 44-46 | 47-49 | 50-53 |
| NECK | 15-15.5 | 15.5-16 | 16-16.5 | 16.5-17 | 17-17.5 | 17.5-18 |
| ARM | 32 | 34 | 35 | 36.5 | 37.5 | 38.5 |
| S | M | L | XL | 2X | 3X | |
| CHEST | 35-37 | 38-40 | 41-43 | 44-46 | 47-49 | 50-53 |
| NECK | 15-15.5 | 15.5-16 | 16-16.5 | 16.5-17 | 17-17.5 | 17.5-18 |
| ARM | 32 | 34 | 35 | 36.5 | 37.5 | 38.5 |