Here's a strapless long black prom dress 20701 that is a classic style with a modern vibe. With a contrasting sheer corset-style bustier, this strapless long a-line formal dress has scattered beading that is sure to shine at prom, galas, and other black-tie events. The long black evening gown has a long skirt that gathers at the waist before draping to the floor in a figure-flattering a-line shape. Offering beauty, poise, and grace, this strapless long black prom dress by Mac Duggal is sure to bring your romantic visions to life.