W by Worth batwing top

Super versatile top - can be worn with button detail in the front, or back. The scoop neckline can be pulled off one shoulder. Batwing sleeves, approx 24" from shoulder to hem in length. Item is NWOT. Never worn (received as a gift - not my style). Size is small, but this top runs large. Would be really baggy/boxy on a true small. I would say it's more of a true M.