If you like options, this long halter prom dress 7081H by Atria is the one for you. With shoulder straps that can be tied multiple ways, this long formal dress lets the wearer change the style from a halter dress with an open back to a sleeveless gown with strappy back. With a deep ruched neckline, this gorgeous long dress can get a fitted look with the shoulder straps criss crossing into an empire waist before tying into the back. Whatever way you choose, this long halter prom dress has a hip-hugging long skirt that opens in a side slit before ending in a sweep train.