I know asian sizes are smaller than American sizes so I ordered this product in large. Needless to say... it was still too small. I wear small in the US and thought that this would fit... I was wrong. it is so tight! It fits perfectly on my waist... but unfortunately the butt area is extremely tight... the thigh area as well. I'm somewhat disappointed but I have to admit, the quality is good. Also, the shorts look exactly like the picture. Its a cute product... but I just wish it wasn't so small.