Polycarbonate Frame & Coppermax Polycarbonate lens are made of impact resistant polycarbonate material, which exceeds the ANSI Z87+ standards for high-mass and high-velocity impact protection. It blocks 100% of harmful UVA and UVB rays. It also has Anti-Reflective coating which is a violet-colored coating on the back of a lens that prevents sunlight from coming in from behind and reflecting off the back of the lens into the eyes. This coating is most useful on water or snow. On the front of the lens, we have a Flash Mirror coating for additional filtration. The Coppermax lens are great for outdoors usage, whether you are driving, cycling, motorcycling, or any outdoors activities.