One-Shoulder Long Prom Dress: Mac Duggal 26517Poise and grace are are yours in this one shoulder long prom dress 26517 from Mac Duggal. With a diagonal fold over neckline, this long formal dress gets a uniquely stylish look for prom, galas, and other black tie events. In misses and some plus sizes, this long evening gown has side ruching for a fitted look, while the long skirt opens in a thigh high side slit before flowing into a small train that completes the design. Celebrate your big night in