Strappy-Back Long Halter Prom Dress: Atria 6920HMade in the USA, this tight long halter prom dress 6920H from Atria is a body contouring dream for your big event. With a square neck halter bodice with wide straps that attach at the back of the neck, this long designer dress has an open back with a horizontal band that keeps everything just so. The eye catching long formal dress has a long skirt that hugs the hips before opening in a side slit and spilling onto the floor in a dramatic train. For a