I've worn this for about four winters. There's a stain around the middle of the arm. Please check the photos. It's a regular Muji XL size. The material is thin sweatshirt fabric, and it's very soft to the touch. The stitching on the back of the neck is frayed. The original price was around 3900 yen for the top and around 2900 yen for the bottom, I think.