It takes power to make an impact. But power that's reckless is an open invitation to the ER. Kazbek is engineered to absorb any high impact, so whether you're hammering away concrete or bombing down the trail on your bike you can harness that power that would make a lesser man shake in his boots. Compliance: Compliant with ANSI Z87.1+ 2003 standards and meets U.S. Military Eyewear Ballistic Impact Resistance Requirements - MIL-PRF-31013 clause 188.8.131.52, MIL-V-43511 clause 3.5.10. Features: Durable light-weight nylon temples.99.9% protection from UVA/UVB/UVC rays. Sleek wrap-around frame; no side shield distortion. Scratch-resistant hard coat and fog-resistant polycarbonate lens.