Make your entrance in this cowl-neck long prom dress and watch as heads turn your way. Sparkly sequins on the sheer corset make this strappy-back long formal dress from Amelia Couture shimmer with every move at prom, galas, and other black-tie events. In misses and plus size, this long evening gown has tummy-concealing ruching at the hips and a long skirt that opens in a side slit before ending in a small train. Surprisingly affordable at under $150, this cowl-neck long prom dress is a modern style with just the right amount of sparkle.