Purchased for a resort trip and only worn for one day during the trip. It's tight and cinched, and very cute! I think it has a Korean-style silhouette. A belt came with the purchase, but I didn't use it because it felt cheap, and I didn't keep it. I wore it without the belt, and it looked sleek, which I had no problem with. The size is as shown in the photos. I'm not sure of the Japanese size, but it felt like a size S, so I've registered it as size S. It fit perfectly for me at 160cm and 50kg. - Color: Khaki - Sleeve Length: Short Sleeve - Design: Tight Fit - Back Style: With Zipper