Size is 19 inches armpit to armpit 23 inches long small to a small medium. Absolutely no return so please do measurements and ask questions if you plan on returning or starting drama please do not bid. I’ve had to emphasize this due to really bad newbies who don’t understand Poshmark etiquette. The sweater is new with tags and absolutely gorgeous. I can only ship once a week please click on bundle and add more than one item to get a good deal but please no extreme lowballing