Blue-Floral Long White Prom Dress: Morgan 14134So pretty, this long blue and white prom dress from Morgan & Co. has a vintage vibe. In junior sizes, this long white formal dress features blue floral designs from the scalloped neckline to hem for a classic look. The long special occasion dress has thin shoulder straps that lead to the strappy open back and matching scalloped trim at the side slit of the long skirt. Simply beautiful for prom, galas, and other formal events, this long blue and white