Open-Back Sequin-Velvet Long Prom Dress 9102In plush sequin velvet, this long prom dress is a shimmering choice for your formal event. An upscale style from Poly USA, this long sequin evening gown sparkles from the v neckline to the hem, while thin shoulder straps criss cross the open back before adjusting for the best fit. In misses and some plus sizes, this v neck long formal dress showcases the curves with a long skirt that opens in a side slit before pooling into a small train that trails