Men have been seen in public with one painted fingernail, and the rationale is very cool and for a good cause.

Men may opt to paint one or more fingernails on each hand, and the color they pick may differ from man to man.

It’s true that some dudes take it up a notch by adding a design on top of the color, but the solitary meaning that it signifies remains unchanged.

This male-only fad originated Down Under, but enterprising American dudes are bringing it stateside.

While on the road with a group called Hagar International, Elliot Costello encountered a young girl named Thea, who inspired him to paint his nail and spread the idea further.