Here is an awesome vintage t-shirt by Adidas. 90% cotton, 10% poly, and made in the USA. Gray shirt with bold Adidas graphic on the front in black and green. Could be 80's, but I'm thinking early 90's. Soft, comfy, and in amazing condition with tons of life left! The tag says Large, but here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 23"
Shoulder to end of sleeve (including cuff) 8"
Length 29"

This item is sold from a vintage boutique in Roanoke, VA.