BearKat® bifocal safety glasses have superior, well thought out construction that combines the best in safety, comfort and affordability. Your vision is unobstructed by the one-piece wraparound lens, which by its tight fit allows you maximum safety and almost 0% of your vision is outside the lens view. Non-slip rubber head grips. Filters 99% of U.V. radiation. Meets or exceeds ANSI Z87.1 safety standards.