Felicite Button Down Shirt NWOT Sz S

NWOT....washed but not worn Off white 3/4 sleeves Pocket on left breast Great condition...just needs to be ironed NOTE.....it says size 3 which is supposed to be a M. I believe it must have been mismarked because I just tried it on and it seem like a S. The following are the measurements you can go by rather than the marked size 19” armpit to armpit 18” about where it would hit hips...measured side to side where it starts to dip