70% Rayon 26% Polyester 4% Spandex. Snug fit. Strapless with back zipper. Sweetheart, halter neckline with elastic gripper at back. Hits at the hip27"" from highest point of shoulder on size 18Combo 1: stretch knit, Combo 2: Woven halter ties. Machine wash cold gentle cycle with like colors. Only non-chlorine bleach when needed. Do not tumble dry. Lay flat to dry. Cool iron as needed.