Itek Features: Newly designed ventilated nosepiece allows heat to dissipate from nose bridge to reduce fogging. Soft dual injected rubber temple tips and flexible nosepiece provide non-slip comfort. 9.75 base curved lens provides excellent side protection against airborne particles. Lightweight, frameless protection is ideal for all-day wear. Exceeds ANSI Z87.1-2003 High Impact Requirements CAN/CSA Z94.3-07 CE EN166 Certified Gray Lens: Commonly used in outdoor applications. First class optical lens provides unrestricted vision. Offers protection from excessive glare Provides 99% protection from harmful UV-A and UV-B rays. Stylish, ergonomic frame combines with sleek polycarbonate lenses for the ultimate in protection and style