Sheer-Waist Long A-Line Prom Dress by La FemmeHere's a beautiful long a line prom dress that fuses traditional style with modern details. From La Femme, this v neck evening gown has a corset style sheer waist that is sure to wow the crowd at prom, fancy galas, and other black tie formal events. Fully lined, this gorgeous long designer dress has a sheer tulle overlay that flows away from the waist, opens in a side slit, and flows to the horsehair hemline in a figure flattering a line shape.