Avenue - NWT Black Formal Dress - Size 18/20 Brand New Black Formal Cocktail Dress by Avenue. This dress is a size 18/20 with a fitted style. The draping in the front is to give a flattering look as it tightens in on the left side of the bodice and helps to define your waist. The deep V-Neck gives off an elegant and chic look while the dress itself hits you at the knee for a classic fit. The sleeves are a normal short sleeve that helps give coverage if you are someone like me and likes my shoulders covered by the sun. All measurements are taken while laying flat: Pit to pit is: 25" Waist is 20.5" Please let me know if you have any questions or need any measurements!