The most well recognised and most used agender flag
Agender defines the feeling of genderless-ness, its an identity describing one that lacks gender to a degree, an agender idenifying person may not label themself as anything and may just say they are a person
Agender people sometimes also identify as non-binary, genderqueer, or transgender, though some choose to avoid these terms, as they can imply that they identify as a gender, when they do not. As it is a lack of gender, some feel that it should not be labeled with a term relating to any gender at all.