Allegrace Womens Sexy Sleeveless Strap Back Open Summer Party Dresses Allegrace Owns Its Own Trademarks.The Serial Number:86500329. The Package Contains Allegrace Tag Sexy Strap Bodycon Hip Package Style White Color/ Open Back Cotton Blend Polyester and Spandex,Soft and Good Elastic 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