Zara black strappy cut out backless midi dress NWOT

NWOT. Never wore but tag fell off. NOTE: only 1 item available & it’s labeled as sz XS but I’ve listed under all # & letter sizes i think it’d fit. Pls refer to measurements/modeled pics for fit & select sz XS when buying Tags: revolve, superdown, J.O.A, tularosa, by the way, finders keepers, privacy please, Lulus, missguided, ASOS, forever 21, Zara, H&M, free people, Miss selfridge, 12th tribe, Nasty gal, topshop, fifth label, Francesca’s, Kendall & Kylie, LPA, Line & dot, NBD, lovers & friends, petal and pup, princess Polly