All Fuse Lenses are made from optical grade, impact-resistant Polycarbonate. However, while all Fuse Lenses do meet or surpass ANSI Z87.1 safety standards for impact resistance, we are unable to stamp our lenses. This is because lenses must be tested in the frame in order to be rated.
Rest assured - our lenses do protect your eyes! Just take it from Mike, one of our past customers who sent us this awesome review: