I think it's a size L, but it feels like a size M. There doesn't seem to be any noticeable stains, but there is some minor soiling and signs of wear. Width: Approximately 47cm Length: Approximately 56cm Please note that these measurements are approximate. I would appreciate it if you understand that this item has been stored at home. There are no smokers in my family. I do not have any pets. I will use recycled materials for packaging. I liked it, but the size no longer fits, so I hope someone will wear it. :)