Short-sleeved cut-and-sew, summer knit, for office casual wear and women's golf wear. Please refer to the photos for the actual measurements. It looks slim, but it stretches quite a bit, so it seems like it would fit sizes S to M. It fits snugly, so it looks simple but is a bit mature. You can wear a jacket over it in early autumn when it's still a bit warm. Please purchase if you understand that this is a used item.