Thank you for viewing. This is a PLUSIV black nylon long-sleeved shirt. It's thin and lightweight. It seems like it could be used as a light outer layer without buttoning it up. The size on the tag is: 13AR Bust 89 Height 158 Made in Japan Cotton 50% Nylon 46% Polyurethane 4% Measurements (approximate): Shoulder width: about 42cm Body width: about 52cm Length: about 60cm It was at my parents' house, so I've home-laundered it. It seems suitable for spring and autumn. Thank you.