Tight Long Mermaid Prom Dress: Atria 6700HShow off the curves in this tight long mermaid prom dress 6700H by Atria Couture. With a ruched v neck bodice, this gorgeous long mermaid evening gown has thin shoulder straps that criss cross the open back before tying into a bow for the best fit. In misses and some plus sizes, this beautiful long formal dress has a hip hugging long mermaid skirt that flows down to the horsehair hemline with a flourish. A small train completes the look of this