Off to a good start, keyhole front and cut-in shoulders convert the mock-turtle neckline of this dress into a sleek halter. With tiers of silky matte jersey on a base of built-in shapewear, this LBD shapes and smooths, bringing out the best in every curve. Mock Neck Black Instantly Slimming Sheath Dress. Control fit runs true to size. For a more relaxed fit order one size up. Built-in shapewear smooths, slims and shapes. Mock-neck collar with surplice wrap at keyhole. Seam under the bust. Concealed back zip with hook/eye closure. Shell: 95% Polyester, 5% Spandex. Lining: 73% Nylon, 27% Spandex. Machine wash. Imported. Length: 37.5" from shoulder.