This strappy-back long prom dress is a no-brainer for the glam girl with a budget. An upscale style from the designers at Nox Anabel, this affordable prom dress is budget-priced under $200, yet is richly designed for prom, military balls, and other black-tie formals. The fabulous backless evening gown has a sweetheart bodice with thin shoulder straps that criss cross the open back before lacing up and tying into an adjustable bow. Booty-enhancing ruching tops the back of this tight formal dress, while side ruching and a bow hang over the thigh-high side slit that adds a sexy vibe to this stand-out formal dress. Offered in misses and extended sizes, this strappy-back long prom dress defines femininity without crushing your budget.