The waist is elastic. It comes with inner shorts and has pockets. There doesn't seem to be any noticeable stains, but there is some wear and tear. Waist (laid flat): Approximately 36cm Length: Approximately 42cm Please note that these measurements are approximate. Please 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. It's a very cute skirt♡ I think it would also be cute paired with pants!