Menâ€s Letterman Jackets with Hood Size Information: Note: 0.4-1.3 inch measure error are allowed due to manual measurement Size S --- Chest 41.3, Shoulder 17.9, Length 26.6 , Sleeve 25.6, Hem 35.8†Size M --- Chest 43.3, Shoulder 18.5, Length 27.2 ,Sleeve 26.0, Hem 37.8†Size L --- Chest 45.3, Shoulder 19.1, Length 27.8 ,Sleeve 26.4, Hem 39.8†Size XL --- Chest 47.2, Shoulder 19.7, Length 28.3 ,Sleeve 26.8, Hem 41.7†Size XXL --- Chest 49.2, Shoulder 20.3, Length 25.5,Sleeve 27.0, Hem 43.7â€