The Oh My Posh Backless Black Dress will have you trending like Beckham ... Victoria Beckham, that is! Stretchy black knit slinks down tank straps to a sexy bodice with side darts, and a plunging front panel. An open back boasts strappy details, while a bodycon fit finishes this fashionable frock. Front of bodice is lined. Model is 5'8" and is wearing a size small. 74% Rayon, 22% Nylon, 4% Spandex. Hand Wash Cold.