Here is an awesome long sleeve t-shirt by Russell Athletic. 100% cotton and made in the USA. Could be 80's, but I'll call it 90's. Dark blue shirt with great US Space Academy graphic on the left breast. Medium weight, soft and comfy. It's in amazing shape 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) 21"
Shoulder to end of sleeve (including cuff) 24"
Length 28"

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