Lulus Exclusive! Who could possibly resist you in the Lulus All this Allure Black Strappy Backless Mermaid Maxi Dress? Medium-weight stretch knit creates this absolute knockout of a dress and its princess-seamed bodice, V-neckline and sexy open back with a network of crisscrossing straps. Figure-skimming skirt flares out at the maxi hem to create a dramatic mermaid silhouette. Hidden back zipper/clasp.