Strappy-Back Long Ombre Sequin Prom Dress 9096Here's a spectacular long sequin prom dress with a modern day twist. With darker sequins at the scoop neckline, this fabulous long sequin formal dress gets an ombre effect that gradually has lighter and lighter sequins as the skirt flows to the floor. A uniquely impressive choice for prom, galas, and other black tie events, this gorgeous long sequin evening gown has thin shoulder straps that criss cross the open back for a sexy vibe with every turn.