X-girl was founded by 1994 by Kim Gordon and stylist Daisy von Furth. X-Girl was originally based in US from 1993 - 1998, and was later sold to Japanese company B's International and has been based in Japan since then. While XLARGE focuses on men's streetwear, its sister brand X-girl focuses on women's streetwear.
X-girl is no stranger to collaborations, and has done so with numerous artists and brands such as Yayoi Kusama, Porter Yoshida, Champion, Fujiya, Vans, Hysteric Glamour and more.
Medicom Toy has been working with X-girl (& XLARGE) since the early 2000s, with the first piece of Bearbrick being a 100% issued via Nylon Japan. Here are some of the releases in the 2000s:
It is in recent years that the Bearbricks received a breakthrough in the finishes. In 2019, X-girl released the first Bearbricks with iridescent finishing in 400%/100% & 1000%.
X-girl 2021 400%+100% here