My girl wears L or XL in USA.
After reading the comments, she went by the recommendations and ordered XXXL (Triple XL), the largest size on sale from this product.
She doesn't wear XXXL in USA, but this thing still is too tight for her!

I think before exporters or salespeople try to sell in USA, they should adjust their sizes!
I mean, Asian sizes are totally out of proportion in USA.
2 stars off for that!