I have spent a fair bit of time (nice being retired :)) searching Amazon and places like that for sexy things that fit my 51" doll. What I have found is that by watching the description in Amazon many times they will mention something is "Asian size" and to order a larger size. Perfect example is https://www.amazon.com/gp/product/B07GW69QYB/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1. Nice thong undies size Small that fit her perfectly and look great. Searching AliExpress I just look for XXS or XS and they fit her as well. I'd say just my 2 cents worth but inflation has raised it to just my nickels worth!