More Details Halston Heritage Sleeveless Sweetheart-Neck Dress, Black Details Halston Heritage structured dress in faille. Approx. length: 26"L down center front, 35"L back shoulder to hem. Sweetheart neckline; backless with self-tie closure. Sleeveless; thin shoulder straps. Fitted bodice; A-line skirt. Side slip pockets. Arched hem. Back zip. Cotton/silk; polyester lining. Dry clean. Imported.