Backless Long Form-Fitting Prom Dress: Atria 6851HBringing your romantic visions to life in this form fitting long prom dress 6851H from Atria Couture. In misses and some plus sizes, this beautiful long formal dress smooths over the curves from the ruched v neckline to the hem for a sexy vibe at prom, galas, and other black tie events. The exciting v neck long evening gown has thin shoulder straps that lead to the strappy open back, while the hip hugging long skirt opens in a thigh high side slit