Combines extra wide viewing range and contoured design. Lightweight, high wrap offers additional coverage. Lens are easy to switch - simply snap off the temples and re-attach them to the desired lens. DX™ anti-fog hard coat protects lens from fog, scratching, and many chemicals. Polycarbonate lens absorbs 99.9% UV. Meets the requirements of CSA Z94.3-2007 and the High Impact Requirements of ANSI Z87.1-2003.