Classic fit and designed to allow for layering.
S = 45" Width at Chest, 36.5" Sleeve Length, 29.5" Center Back Length.
M = 47" Width at Chest, 37.5" Sleeve Length, 30" Center Back Length.
L = 50" Width at Chest, 38.5" Sleeve Length, 30.5" Center Back Length.
XL = 53" Width at Chest, 39.5" Sleeve Length, 31" Center Back Length.
XXL = 56" Width at Chest, 40.5" Sleeve Length, 31.5" Center Back Length.