Gorgeous long slim fit back strap, hidden zipper on the side, non elastic Prom DressesLANQI's gorgeous long slim fit back strap with hidden zipper on the side, non elastic Prom Dresses. This dress is made of satin fabric, with a strapless top, exposed bow, and irregular skirt design paired with a mid length silhouette, showcasing a cool and high end style. The satin material has a delicate luster, with a strapless cut that accentuates the shoulder and neck lines, a backless bow that enhances the delicate atmosphere, and a hanging skirt