So I ordered a size S, typically Im an XS-S, as a young teenager. And i received a M..I was like ?? But i put it on and it fit PERFECTLY. I needed something that my mom would approve of, she wanted me to have shorts and full coverage at the top. And this was great. I was worried about the shorts, because I thought it was a thin shorts layer, but it actually has shorts IN the shorts that like actually hold your tush. If you want full shorts and youre a S, id recommend the M. I absolutely love the colour too!! My only critique is the “sinching” (apologies if i spelt that wrong), it doesn't do much lol. But it’s cute to tie in a bow. Maybe im wrong, i havent worn it anywhere yet. But I am VERY excited!