Here is a cool vintage long sleeve western snap shirt by Panhandle Slim. 65% polyester, 35% cotton, and proudly made in the USA. Bold plaid of white, dark blue, black, maroon, green, and yellow. Seven button front, three buttons at each cuff, buttoned pocket on each breast. In excellent shape with lots of life left! The tag says 16 - 32, but here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 23"
Shoulder to end of sleeve (including cuff) 22"
Length 33"

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