More often than not, most socks advertised as "thigh highs" are actually just knee highs... and it really sucks! Must be asian size, I dunno! ;w;
I'm roughly 190cm (6.23ft) tall, and these thigh highs actually go up all the way~! This is where I bought them: https://www.amazon.com/gp/product/B07ZDFNL4R/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1