Here is a cool vintage button down shirt by Arrow Brigade. It's 65% cotton, 35% poly. Handsome plaid of red, black, blue, and olive green. Seven button front, with two on each cuff, and a pocket on the left breast. This one is in amazing condition with years of life left! The tag says XL, but here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 24"
Shoulder to end of sleeve (including cuff) 25"
Length 33"

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