Here is a cool vintage button down long sleeve shirt by Bon Homme. 65% poly, 35% cotton, and made in the USA. Great plaid of red, green, yellow, and blue. Seven button front, two buttons on each cuff. Thin, light weight, soft, and super comfy. In great 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) 22"
Shoulder to end of sleeve (including cuff) 25"
Length 31"

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