Backless Chiffon One-shoulder Empire Prom Dress. Empire prom dress with a one-shoulder neckline. The chiffon fabric is delicately gathered in all the right places to be figure-flattering. The unique geometric back flows down to a floor-length skirt that creates a stunning figure. Get Fashion Style Prom Dress and Save 80% OFF on Backless Chiffon One-shoulder Empire Prom Dress@FancyLadies.