This must - have shapewear dress flatters, lifts, and smooths without constricting. It features a mini length, bodycon silhouette, and mock neck, long sleeves, and open back, as well as a lightweight double - layered knit fabric that contours the body for a flattering and smoothing fit with minimal seams and high functionality. . 90% nylon, 10% spandex. Hand wash cold. Model is 5'11. 5" and wearing a small. Women's contour open - back mini dress in black medium