I'm selling this because my child has outgrown it☆ I purchased it at a store. The size is free. I think it can be worn by children from 0 to about 3 years old. It was easy to just throw on. The color is a light purple, which is difficult to see in the photos. I don't see any stains, but this is just my observation, so I hope you understand. It's a design typical of Mezzo Piano.