One-Shoulder Long Prom Dress: Ava Presley 29171This one shoulder tight long prom dress 29171 is for the girl who loves a feminine yet bold look. With a one shoulder ruffle that trims the neckline, this long formal dress gets a sweet look for prom, galas, and other black tie events. In misses and some plus sizes, this one shoulder long evening gown has a princess cut bodice and a long skirt with matching ruffled trim at the thigh high side slit. As alluring as it is figure flattering, this one