Small: 37 - 38" Chest
Medium: 39 - 40" Chest
Large: 41 - 42" Chest
XL: 43 - 44" Chest
2XL: 45 - 46" Chest
3XL: 47 - 48" Chest
5XL: 49 - 50" Chest
6XL: 51-52" Chest
7XL: 53-54" Chest