This jacket was purchased about two years ago at an outdoor specialty store. *It was purchased at an outdoor store, but the item itself doesn't seem to be related to outdoor activities. (Subsidiary brand? Special order brand? Mystery)* The size is M, as shown in photo ④. I'm selling it because I've only used it three times under an outer layer. The fabric is polyester and lightweight, so it should be warm when worn under an outer layer. *It has not been washed.* Please consider purchasing after understanding the above information.