Lying flat down approx. size measurements:
Medium
Shoulder(seam line to seam line): 19.5 inches
Armpit to armpit(across chest): 22.75 inches
Sleeve(shoulder seam line to end of sleeve): 25 inches
Back body center length(bottom of collar to hem): 26.75 inches
XXL
Shoulder(seam line to seam line): 23 inches
Armpit to armpit(across chest): 28.5 inches
Sleeve(shoulder seam line to end of sleeve): 27 inches
Back body center length(bottom of collar to hem): 31.25 inches