They all meet some kind of standard, I have my Scott lense right here and I quote "The lens is made of LEXAN, one of the toughest, shatter-resistant transparent materials known to man. This lens exceeds the U.S. Department of Transportation Test, VESC-8, in regard to impact resistant. However, no goggle can protect the wearer against all potential impacts. This lens is coated to provide resistance from scratching cause by normal cleaning. With proper care this lens will resist scratching better than conventional non-coated lenses."