Self: 58% lenzing ecovero 42% viscose Lining: 100% poly.Made in China.Hand wash.Fully lined.Lace-up back tie closure and hidden back zipper closure.Adjustable shoulder straps Side and back cut-out.Lustrous satin fabric.Model 1 is wearing size US 10 Model 2 is wearing size US 2 Model 3 is wearing size US 6.The Backless Midi Dress from Shona Joy's La Lune collection is a satin dress with a lace-up back. Style it with heels for your next special event.