Long Navy Blue Prom Dress: Dear Moon J335902Simply beautiful, this open back long navy blue prom dress is high on style, not on price. At under $100, this junior sized long formal dress offers an upscale look for prom, fancy wedding receptions, and other black tie events while allowing you to stick to your budget. With a high neck bodice and cut out shoulders, this long formal dress has thin shoulder straps that criss cross the open back, while the long skirt smooths over the hips before