All measurements are in inches, taken flat.

XS S M L XL
Length 27.17 28.35 28.74 29.53 29.92
Chest 43.31 44.88 46.46 48.82 49.61
Sleeve length 25.59 26.77 26.77 28.35 28.74
Shoulder width 5.91 6.30 6.30 6.30 6.69