2 colors of the Flotro 4s dropped overseas in Japan. https://www.underarmour.co.jp/ja-jp/item-%E3%82%AB%E3%83%AA%E3%83%BC4flotro%EF%BC%88%E3%83%90%E3%82%B9%E3%82%B1%E3%83%83%E3%83%88%E3%83%9C%E3%83%BC%E3%83%ABunisex%EF%BC%89/3024861.html
I just copped it this year from a shop in Europe. Some of them ship overseas, so you just have to find one that has it in stock and ships world wide. Search for CN7898-419 and good luck with the hunt.