The waist is elastic. It comes with an inner lining and has no pockets. There doesn't seem to be any noticeable stains, but there is some wear and tear. Waist (flat): approx. 32cm Length: approx. 53cm Please note that these measurements are approximate. I would appreciate it if you could 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 very cute, but it's become difficult for me to wear due to my age, so I would be happy if someone could wear it cutely (*^*)