Purple and gray short sleeve sweater shrug

This is a beautiful purple and gray sweater with tiny bit of silver thread. No closure so can be worn open, pinned closed or belted. Short sleeved like a shrug. Would work great over a dress too! Brand is Decree and shows a size large but would definitely fit a medium. Armpit across is 16 in. Shoulder to front hem is 21 in. To back is 24 in. So cute and different!