Simple and sleek, this halter prom dress is pure unadorned sophistication. A halter-style collar wraps around the neck, and a triangle-shaped neckline tops the fitted bodice of this tight prom dress. A side slit elevates the allure by parting high on the floor-length skirt of this sexy prom dress that's sold exclusively at PromGirl. Versatile in its sultry simplicity, this long halter prom dress is perfect for prom, weddings, and other formal special occasions.