This is a Uniqlo 2-way blouse. You can wear it with either the front or back facing forward. It's smooth and comfortable even in summer, and I think you can wear it all year round by changing the inner layer. Size: M Navy long-sleeved shirt with buttons - Brand: UNIQLO - Color: Navy - Design: Button-down, round neck Thank you for looking. Office casual Uniqlo UNIQLO GU Muji blouse Tops Long T-shirt Shirt