Size Chart - Sport-Tek® Waterproof Insulated Jacket JST56
| Chest Width (Laid Flat) | Body Length | Sleeve Length | |
| S | 22" | 28" | 36" |
| M | 23 1/2" | 29" | 36 3/4" |
| L | 25" | 30" | 37 1/2" |
| XL | 26 1/2" | 31" | 38 1/4" |
| 2XL | 28" | 32" | 39" |
| Chest Width (Laid Flat) | Body Length | Sleeve Length | |
| S | 22" | 28" | 36" |
| M | 23 1/2" | 29" | 36 3/4" |
| L | 25" | 30" | 37 1/2" |
| XL | 26 1/2" | 31" | 38 1/4" |
| 2XL | 28" | 32" | 39" |