Back 3/4 sleeve top by Sushi Flower brand is 94% polyester and 6% spandex and is NWT. It has a draping cowl neck with 3/4 sleeves and has an insert of fabric that is about half way down on the inside (so doesn’t add bulk). It is a size small and from armpit to armpit seam unstretched is 16” across and from the middle of the shoulder down is about 23”. Hand wash. Made in USA upc 4-00002-16169-1