This dress has never been worn. I bought it for my wedding and then my mom ended up buying me the dress I really wanted a month later. This dress is beautiful and the small details truly make this dress elegant. The lining of the dress and the exterior material of the dress is 100% polyester. It is a size 10, but I think it seems more like a size 8. The detailing in the sweetheart neckline is gorgeous and is my favorite part of the dress. The dress is tapered similar to a mermaid dress.