Hummel Men's/Adult Unisex Size Chart
| SIZE | NECK | CHEST | WAIST |
| XS | 13"-13.5" | 33"-34" | 27"-28" |
| S | 14"-14.5" | 35"-37" | 29"-31" |
| M | 15"-15.5" | 38"-40" | 32"-34" |
| L | 16"-16.5" | 41"-44" | 35"-38" |
| XL | 17"-17.5" | 45"-48" | 39"-42" |
| 2XL | 18"-18.5" | 49"-52" | 43"-46" |
| 3XL | 19"-18.5" | 53"-56" | 47"-52" |
| 4XL | 20"-20.5" | 57"-60" | 53"-56" |