This is a vintage CELINE dress. The size is 40, and the material is wool with cotton for the collar and cuffs. It's a rare vintage CELINE dress made in France. I think it's a valuable item because it's difficult to find these days. The white cotton collar and cuffs are detachable with buttons. I purchased it a long time ago from a major vintage boutique, but I have never worn it myself and have kept it in storage. There are some stains on the white collar, etc., but I will sell it as is, so I think it can be worn if you take care of it yourself. It's a very cute vintage CELINE design, so please consider it if you are looking for one.