-help camoflouge your eyes
-intimidate yours opponents
-rip and tear easily
- kinda hard to clean
- blurs vision somewhat(very little at all)
I like these a lot the look cool and my friends always know who's shooting at them when they see my mask. I have them on a pmi x-ray mask, it doesn't have thermal lenses, so when it fogs up is hard to clean the fog off because of the skinz.
If they dont bother your vision they look cool and are great.