Indoor/outdoor lens. Extremely lightweight - less than 1.0 ounce - low-cost, all-around impact protection. Revolutionary dual 9.75 base curvature in an integral unitary lens offers wide, unobstructed view. Deep temples provide same protection as large sideshields. Scratch- and impact-resistant, hardcoated polycarbonate lenses block more than 99.9% of UV-A and UV-B light. Meets or exceeds ANSI Z87.1 standard.