Purchased at a Korean clinic for 110,000 won. The manufacturer and size are unknown, but it's likely around a size M. Worn for about two weeks. Washed. The color is black, so there are no noticeable stains, but there is a feeling of use, so please refrain from purchasing if you are concerned. It provides compression, so it can still be used for a while. It's convenient because you only need to unbutton it when using the restroom, so you don't need to take it off. The shoulder straps are removable.