Black Polka Dot Halter Party Dress - Flatter Your Curves - Retro Style by Hey Viv Fabric: 97% cotton, 3% spandex; machine wash Rock! in this sweet heart black and white polka dot dress. It's a comfy stretch cotton halter dress that can be dolled up in pin up fashion or worn with cute flats to a hot rod car show. Dress has gathered bust, sweetheart neckline and halter top that ties in the back. The skirt is flared and would look great over a crinoline (purchase separately) Dress has rounded, dropped front waistline and back nylon zipper. Sizing Tip: This fabric has some stretch to it which helps make it an easy fit. The back zipper opens from 1/2 See Product Description below for sizing information - do not use Amazon standard sizing chart