DC guardian has an awesome looking mask that doesn't look like it uses anything that would irritate your skin. I'm just guessing here, but it looks like spandex or some other stretchy cloth over sunglasses. The effect just screams superhero though. Of course, I don't think he designed his mask to protect his face, just his identity. What kind of mask you go with would depend ultimately on function. If you want to be able to take a punch to the face and not be blinded, maybe something sturdier would be better. Bandannas, headscarfs, and balaclavas are other options for lightweight masks. Keep in mind, how much of your face you show also says a lot about you.