For safety and style on the slopes or in the workplace. The 11 degree base curve lens and proprietary gel nose piece keeps you at the peak of comfort and style all day long. Klondike Features: Strong, lightweight polycarbonate lens with 11 degree base curve Lightweight Nylon frame Adjustable temples Gel nose piece Superior scratch resistance Filters 99.9% of U.V. Radiation Meets or exceeds ANSI Z87.1 safety standards for high impact