Classic fit and designed to allow for layering.
S = 45" Width at Chest, 34.75" Sleeve Length, 29.375" Center Back Length.
M = 47" Width at Chest, 35.5" Sleeve Length, 30" Center Back Length.
L = 50" Width at Chest, 36.5" Sleeve Length, 31" Center Back Length.
XL = 53" Width at Chest, 37.5" Sleeve Length, 32" Center Back Length.
XXL = 56" Width at Chest, 38.5" Sleeve Length, 33" Center Back Length.