I call this a Ninja hood, but not sure what it really is or where it came from, I think it's actually a Halloween horror mask.
The hood has a mesh net sewn in over the face and the rim around the mesh put the rest of your face in shadow.
Which is easy to see out of but hides the identity of the face behind it.
Not only that the black hood with the mesh darkening your face make you invisible in the dark when combined with other black clothing.
So ideal for raiding an oriental castle on a moonless night.
