Black button down extra fine mering wool

Real Clothes 100% extra fine mering wool made in Italy. This is a super cute button down ribbed cardigan, super soft! Real Clothes is a Saks Fifth Avenue brand. The sweater looks brand new, no snags or imperfections. Shoulder to end of the sleeve is 23” and middle of back to bottom is also 23”. Armpit to armpit is 17.5”. The tag says large and I think it could be if you don’t expect to button the buttons, it’s more a medium if you plan to button the buttons.