Here's a strappy corset prom dress that's perfect for a variety of formal events. Double spaghetti straps round the shoulders and secure above the lace-up back detail on this open-back prom dress. Figure-flattering pleating graces the top of the corset bodice and the top of the floor-length skirt on this long prom dress. A side slit adds the final touch that completes this beautiful pleated corset prom dress.