Backless Slit V-neck Chiffon A-line Prom Dress. A-line prom dress with a V-neck 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. Buy this Dress and Get 15% OFF on Backless Slit V-neck Chiffon A-line Prom Dress at FancyLadies.