I think the size is about S in Japan for GAP. Since it's stretchy, those who want a FIT can probably wear an M size as well. It's a thin, long-sleeved pink shirt. It has a subtle satin-like luster. Because it has a simple design, how about wearing it as a subtle fashion statement, such as as an inner layer for a suit? Width: 47cm (measured under the armpits) Sleeve length: 77cm Length: 69cm Shoulder width: 39cm Thank you for looking.