Back Zipper, Corset, Sequins, Form Adjustable Lace-Up Open Back, Sequin Tulle, Length to the floor, Slight Scoop The fully-lined long formal dress has a sheer overlay that boasts a shimmering sequin pattern from the neckline to the hem of the curve-hugging long skirt. Supportive spaghetti straps round the shoulders before creating a statement by crossing the open back and tying into a bow. For a sparkly look at prom, fancy galas, and other black-tie formal events, slip into this luxurious statement-back long prom dress and be prepared to stand out beautifully.