A line Halter Long Black Sequin Slit Prom Dress P1273 PreppyDress Classy Long A line Satin Open Back Prom Dress with Slit BIZTUNNEL Gorgeous Off Shoulder A line Backless Satin Slit Long Prom Dresses, FC Stunning Long A line Sweetheart Satin Front Slit Prom Dresses with Poc. This Elegant Long A line Halter Prom Dress is both stylish and functional. Made of smooth satin. it features a flattering A line silhouette. a chic halter neckline. and a daring front slit. The backless design adds a touch of allure. while the pockets provide practicality. Perfect for any prom or formal event.