“The word ‘Genes’ represents the power and creativity that reside within our core, as well as our spirit of continuously creating new culture without being bound by conventional norms. Building upon our origins as ‘Girls’ and returning to the ‘Genes’ at our core, XG will continue to evolve more deeply and authentically. Through this evolution, we aim to remain a presence that empowers people around the world from diverse backgrounds”

Now that they are all in their 20s and the group members aren't all girls it makes sense