SIZE CHART XS: 2 SM: 2-8 ML: 8-14 XL: 14-16 I am usually a M/L but I ordered a size up because costumes usually run small but it was too big. lol. It’s still super cute. I’ve provided the size chart that came with the costume & hope it helps! My measurements are 34,31,42

I’m 5’4 & 280lbs thick thighs/bottom but it fits great! but probably not for girls with bigger breasts but body suit has some stretch to it & it also has a zipper.