Lying flat down approx. size measurements:
Large
Shoulder(seam line to seam line): 18.75 inches
Armpit to armpit(across chest): 20.75 inches
Sleeve(shoulder seam line to end of sleeve): 25.25 inches
Back body center length(bottom of collar to hem): 29.5 inches
XL
Shoulder(seam line to seam line): 19.5 inches
Armpit to armpit(across chest): 22.25 inches
Sleeve(shoulder seam line to end of sleeve): 26 inches
Back body center length(bottom of collar to hem): 29.5 inches
XXL
Shoulder(seam line to seam line): 19.5 inches
Armpit to armpit(across chest): 23.25 inches
Sleeve(shoulder seam line to end of sleeve): 26 inches
Back body center length(bottom of collar to hem): 29.5 inches