The size is US men's M. Please check the photos with the measuring tape. This is an official T-shirt from when Hall of Fame inductee Ichiro Suzuki played for the Marlins. He played for the Seattle Mariners and the New York Yankees before joining the Miami Marlins, and he seemed to be having a lot of fun during his time with the Marlins. (This is the impression of a fan who went to the stadium many times.) I have carefully stored it in a box in my closet. There are some fold wrinkles, but there are no loose threads or holes. Although it is unused, it is a personal item that has been stored for a long time. I would like to sell it to someone who understands this.