Crafted from non - stretch denim, this mini dress features a sweetheart neckline, square - cut back, zip - up front, allover seam detailing, smocked back panel, short sleeves with high - polish buttons, and a bodycon silhouette. . 69% cotton, 27% polyester, 3% other fibers. Machine wash cold. Model is 5'8" and wearing a small. Women's denim zip - up sweetheart mini dress in medium denim, xs