Open Back Long Halter Prom Dress: Amoris T713 Open Office Design Projects :: Photos, videos, logos, illustrations and OnePlus Open 2 reportedly cancelled and that's a real shame for Open the Blinds INT Design. Look amazing in this open back long v neck halter prom dress T713 from Amoris by Cinderella Divine. At under $200, this long halter evening gown is an affordable choice for prom, galas, and other formal events. The long evening gown has a deep v neck halter bodice with long sashes that tie at the back of the neck before hanging down over the open back. The long halter formal dress has a faux wrap skirt with tummy concealing pleats and a wide side slit. You won't want to leave your reflection after you've seen yourself looking fabulous in this open back v neck halter prom dress that is sure to ignite the light.