It fits even if you're 163cm and 57kg. It's a free size, but it's about a size M. It fits snugly around the hips like a mermaid, but the bottom flares out, and there's sparkly fabric on the inside, which is cute. The zipper under the arm cinches the waist, so you can wear it beautifully. I've set the price lower than others. Please take a look.