Eiri is an umbrella term for all of those who identify as a man, man-aligned, or masculine-aligned. It includes binary men (cisgender and transgender), non-binary men, demiboys, solarians, marfluid, and many other man-aligned non-binary identities, and masculine-aligned non-binary identities. The term can be used as an umbrella term or as an individual gender.
The female and feminine counterpart is viri.
Eiri was coined by Vasilisa through Tumblr blog beyond-mogai-pride-flags on April 2, 2018.
The flag was also created by Vasilisa through beyond-mogai-pride-flags on April 2, 2018. It is the inverse of the viri flag.