Ready for the spotlight, this corset mermaid prom dress is a red-carpet-worthy style that's exclusively sold at PromGirl. The fitted v-neck bodice features structured corset boning and a chic adjustable lace-up design on this open-back prom dress. A big bow draws the eye to the side of the waistline, and figure-flattering ruching hugs the hips. Trailing down from the bow on this ruched prom dress is a ruffled side slit that adds a dash of classic elegance. From the trendy strappy open back to the timeless train, this corset mermaid prom dress is the perfect blend of the latest bold designs and well-loved fashion favorites.