Long Prom Dress with Tied SideSo elegant, this long prom dress raises the style bar without emptying your wallet. The affordable long prom dress, under $200, creates a fabulous silhouette from the sweetheart neckline to the floor for a beautiful look whether you're going to prom, a military ball, or another formal event. Thin shoulder straps criss cross the open back of this long formal dress before adjusting for the best fit. Offered in misses and extended sizes, this sweetheart