Simply elegant, this long a-line prom dress is a traditional style with modern upgrades. From La Femme, this long designer dress features a ruched bodice with a notched deep v-neckline and adjustable shoulder straps that lead to the deep v-back detail. With a ruched waistband, this long formal dress gets a long and lean look, while the long skirt opens in a side slit before flowing to the floor in a flattering a-line shape. Offered in misses and plus sizes, this long a-line prom dress is a stylish choice whether you are attending prom, a fancy gala, or another formal event.