Halston Heritage Slim Dress in White. - size 2 (also in ) Halston Heritage Slim Dress in White. - size 2 (also in ) Self: 100% polyContrast: 93% poly 7% elastaneLining 1 & 2: 100% poly. Dry clean only. Fully lined. Adjustable shoulder straps. Sheer mesh ladder trim. Hidden back zipper closure. Side slit. HALS-WD501. HPC152386T. Launched in 2009, Halston Heritage takes the iconic silhouettes from designer Roy Halston Frowick and reinterprets them for the modern woman. Expect a timeless approach to style along with luxurious designs that reference pieces worn by Bianca Jagger, Liz Taylor, and Anjelica Huston.