Strappy Open-Back Long Prom Dress: Atria 6300HSimply beautiful, this v neck long mermaid prom dress 6300H is a classic style for your big night. From Atria Couture, this elegant evening gown has a v neck bodice with thin shoulder straps that criss cross the open back for a flirty look with every turn at prom, galas, and other black tie events. In misses and some plus sizes, this charming long formal dress has a long mermaid skirt that hugs the hips before ending at the horsehair hemline with a