Tag reads: Nike 100% cotton Medium 38-40 (vintage can run small, check measurements below) Made in USA
Measurements: Length (shoulder to end of garment): 25" Width (armpit to armpit): 18" Sleeve (armpit to end of sleeve): 4"
**I like to recommend you compare the measurements listed to the measurements of a shirt you like the fit of to see if it will work** All measurements are taken with the garment flat on the ground.