Calvin Kline NWOT sleeveless maxi dress black and white geometric design size M

Calvin Kline striking intricate geometric black and white pattern. Tank top upper with a long full skirt. This is for someone tall, or for someone who can hem! Really flattering dress. There’s no size tag and no material tag, so I’m guessing medium but its very stretchy so could go larger. Slinky, elastic-ie lightweight material. Belt not included I measured armpit to armpit at 17 1/2 inches and the length at 56 inches. Condition is very good, unworn, NWOT. We are a non smoking household