Step out in this long a-line prom dress that offers a traditional look with a modern vibe. The beautiful a-line evening gown sparkles with a sheer beaded-lace bodice that has a deep v-neckline and thin shoulder straps that lead to the v-back. The dazzling long formal dress has a faux-wrap long a-line skirt that opens in a side slit before angling away from the hips before cascading down to the floor. Offered in misses and extended sizes, this glamorous long a-line prom dress is surprisingly under $250.