Here is a classic vintage long sleeve button down flannel shirt. 100% cotton and made in the USA. Great plaid of mint and teal green, red, tan, and white. Seven button front, button down collar, a button on each wrist and cuff, and a pocket on the left breast. This shirt is warm, soft, and very comfy. It's in excellent shape with tons of life left. Here are the measurements. (refer to the last pic above to see how I measure shirts)

Shoulder to end of sleeve (including cuff) 23"
Chest (armpit to armpit) 23"
Length 29"

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