Long Prom Dress: Lucci Lu 1458Sleek and sexy sleeveless floor length prom dress by Lucci Lu with a stylish open back detail. This satin dress is fully adorned with subtle scattered rhinestone embellishments and features a fitted silhouette, thin shoulder straps, a scoop neckline, and a crisscross strappy open back with a twisted detail in the lower back. The dress finishes with a high leg side slit and a graceful sweep train.