We were answering the performance demands of professional athletes when another group came calling: the industrialized world. It's no secret that Oakley protection technologies have been embraced by soldiers, SWAT team members and others who take their view of the world seriously. From heavy industry to home repair, workers wanted that same level of protection, so we created the Industrial M FRAME. Tested and qualified as true safety glasses, this lens/frame combination meets all ANSI Z87.1 standards for clarity and impact resistance, as well as the protection criteria of Canada's CSA Z94.3-02 standards.For the high-mass impact test of ANSI Z87.1, a 5-inch metal spike (17.6 ounces - more than a pound of weight) is dropped on the lens from a height of more than four feet. To pass the test, absolutely no frame parts or lens fragments that could contact the eye may be ejected during impact. For high-velocity impact testing, a quarter-inch steel shot is blasted from a pneumatic cannon to hit the lens at 102 mph. Lenses are shot from various angles. To pass the test, no contact between the lens and eye is permitted, and absolutely no frame parts or lens fragments that could contact the eye may be ejected during impact.This level of protection is made possible by proprietary geometries and materials. Oakley's patented technologies maintain optical clarity with lens contours that enhance side protection from sun, wind and impact. Stress-resistant O MATTER(R) frame material is engineered with a critical degree of flexibility to absorb impact. PLUTONITE(R) lens material is impact resistant and offers added protection by filtering out 100% of all UVA, UVB, UVC and harmful blue light up to 400nm. The UV protection is built into the lens material - it is not a surface coating that can wear away - so even our Clear lens offers the full level of UV filtering.