Backless Long Jersey Prom Dress: Poly USA 9120Showcase the curves in this long jersey prom dress 9120 from Poly USA. With beaded designs on the plunging v neck bodice, this long formal dress gets a sparkly look for prom, galas, and other black tie events. In misses and some plus sizes, this long evening gown has thin shoulder straps that cross over the open back, while the hip skimming long skirt includes a bead trimmed thigh high side slit that offers a sexy vibe. A small train completes the