Here's an off-the-shoulder plus-size long prom dress that is as glamorous as it is refined. From the designers at La Femme, this fabulous long-sleeve plus evening gown is sure to get endless compliments at prom, fancy wedding receptions, and other formal events. The flattering long designer plus-size formal dress has a curve-contouring criss-cross bodice with a romantic off-the shoulder neckline. Skimming the hips, the long skirt opens in a side slit before pooling into a dramatic follow-me train. For a regal look with a designer's flair, this eye-catching plus-size long prom dress by La Femme is a hot pick of the season.