This is a close-fitting cut-and-sew top with a large neckline. It's a size M, but when I (158cm, 51kg) wear it, it's a bit tight, probably due to my body shape... It does have some stretch. I've worn it a few times, but I'm selling it while it's still in good condition. I have home-laundered it. The last image includes measurements taken by a non-professional, so please use them as a reference.