Cowl Open-Back Long Prom Dress: Astee T2008Be red carpet ready in this slinky long prom dress by Astee. With thin spaghetti straps that lead to the open back, this exciting long formal dress has a draped cowl back that adds to the look of romance. The long evening gown has side ruching for a fitted look, while the long skirt smooths over the hips before ending at the floor. Surprisingly under $100, this beautiful spaghetti strap long formal dress is as classy as it is affordable for prom,