"I bought this for my 8 year old grandaughter who wears a size 8. We purchased size M which is listed as 8/10. The top was way too small, tight in arms and much shorter than pictured. The skirt is much shorter than pictured, but larger at the waist?? We decided she would wear a black leotard and black capri's under the costume. Thank goodness we got the wig! It makes the outfit!!"