Here is a cool vintage button down long sleeve shirt by 1 Up. 65% poly and 35% cotton. Handsome plaid of blue, red, yellow, and white. Seven button front, a button on each cuff, and a buttoned pocket on each breast. Thin, very sheer, light weight, crazy 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) 24"
Length 30"

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