Sweatpants, 120cm. These pants have two thin elastic bands, and there's an opening for replacing the elastic. The upper elastic is tighter than the lower one, but they were worn without any problems. If you're concerned, I recommend replacing them. There are no noticeable stains, as far as I can see, but there may be some fuzzing of the fabric. Please understand that these are used items that a child has worn before purchasing.