Here is an awesome short sleeve shirt by Career Club Focus. 50/50 poly and cotton blend, and made in the USA. Bold red shirt with striping and accents in dark blue. Fairly light, super soft and comfy, and in incredible shape with tons of life left. The tag says Medium, but here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 17"
Shoulder to end of sleeve (including cuff) 8"
Length 26"

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