This is a GLOBAL WORK shacket (shirt-jacket) with a crisp, slightly rustling texture. ● I've worn it about 5 times after purchase, and it's been stored in my closet since then. ● The buttons can be fastened with one hand with a single touch, making it very convenient. ● The fabric has a crisp texture that resists wrinkles. It's not too thin, and the back is mesh, so you can use it as an outer layer in the summer, or wear it under another outer layer in spring and autumn. Manufacturer: GLOBAL WORK Size: S (Main Fabric) Polyester: 63% Cotton: 31% Polyurethane: 6% (Mesh) Polyester: 100% Please feel free to comment if you have any questions.