Thank you for viewing. This is a WELLDER shirt I purchased at a used clothing store several years ago. Made of 100% rayon fabric, it's extremely comfortable to wear. It can be worn all season. The hidden button placket gives a clean impression when closed. I've worn it about once a month, and there are no noticeable scratches or stains. The size is listed as "3" on the WELLDER official website. I think it feels like a slightly larger size S. Compared to a Uniqlo M-size shirt, it's about the same size or slightly smaller. Color: Blue Pattern: Check Collar Design: Band collar / Stand collar