I received this as a gift for my son, but he doesn't wear it, so I'm selling it. Please refer to the photos to determine the size. (Whether it's Japanese size or USA size, etc.) I'm not sure because it was a gift. The tags are all I have. *The category is listed as women's, but it's unclear. (I chose women's for now because it was a required field) *I try my best not to miss anything, but please understand that it's not perfect. *Please purchase only if you understand.