Off-Shoulder Long Navy Prom Dress: La Femme 33711Simply beautiful, this off the shoulder long navy blue prom dress 33771 by La Femme is a celebration of romantic style. A classic design for prom, galas, and other formal events, this long designer dress is crafted in textured jacquard fabric from the straight neckline to the hem. In misses and some plus sizes, this long navy prom gown has fold over banded sleeves for a romantic vibe, while the long skirt flows to the floor in an a line shape.