La Femme Lace-Up Open-Back Long Prom Dress 31295Show off the silhouette in this impressive long prom dress 31295 from La Femme. Crafted in gleaming fabric from the v neckline to the floor, this open back long designer dress includes thin shoulder straps that criss cross the open back before lacing up for a fitted look. The v neck tight long formal dress has a hip hugging long mermaid skirt that flows to the floor before a small train provides the drama for prom, galas, and other black tie events.