Wow is what they'll say when you arrive in this long prom dress that showcases the curves in sparkly style. In shimmering fabric from the v-neckline to the floor, this tight long formal dress is a sexy choice for prom, military balls, and other black-tie events. The sparkly evening gown has thin shoulder straps that lead to the deep v-back detail, while a twisted knot accents the booty as the hip-skimming skirt flows to the floor. Budget-priced under $100, this sparkly long prom dress lets…