Classic fit.
S = 39" Chest, 35.25" Sleeve Length, 26.5" Center Back Length.
M = 42" Chest, 36.25" Sleeve Length, 27" Center Back Length.
L = 45" Chest, 37.25" Sleeve Length, 27.5" Center Back Length.
XL = 48" Chest, 38.25" Sleeve Length, 28" Center Back Length.
XXL = 51" Chest, 39.25" Sleeve Length, 28.5" Center Back Length.