This is a wrinkled shirt from Banyardstorm. The size is 0, which I think is about a size S. I bought it a while ago and don't remember wearing it, so I think it's only been tried on. As shown in photo 4, it seems you twist the shirt and secure it with the string to create the wrinkles. I don't think there are any noticeable stains, but please refrain from purchasing if you are looking for perfection, as there may be oversights and it has been stored at home. For shipping, I plan to untie the string, fold the shirt, and send it via Nekopos.