It might be best for someone who usually wears a size M. I'm L-XL, so the chest area felt a bit tight. It's labeled as a size 3, but compared to other size 3 items, it feels a bit slimmer. I bought it on Mercari as being in good condition, but there was a slight stain around the lower back. I tried it on, washed it once, and ironed it. It seems like the stain might come out, but I'm not sure. It's not very noticeable, so it should be fine if you don't mind it.