Backless Cowl-Neck Prom Gown: Astee T501Be the sexy girl in this cowl neck open back long halter prom dress by Astee. The gorgeous sexy long formal dress showcases the curves from the cowl neckline to the hem, while the halter bodice has thin shoulder straps that attach at the back of the neck. A wow worthy open back makes this long halter evening gown a sexy choice for prom, galas, and other formal events, while the long skirt pools into a small train to complete the look. Surprisingly