Allegrace Womens Zipper Back Knotted Bodycon Bandage Evening Party Dresses Allegrace Owns Its Own Trademarks.The Serial Number:86500329. The Package Contains Allegrace Tag Can be Weared With Two Styles,The Front and Back Can be Exchanged Cotton Blend Material With Good Elastic Sexy Knotted Back Bandage Dress Sizes:S(US4-6),M(US6-8),L(US8-10),Detail Size In The Product Description,if you are not sure about your size,pls choose one size up