So lightweight workers forget they are wearing them, weighs just 77 ounces (22 grams). Soft rubber nose bridge and colorful rubber temples inserts make it easy to wear. Lens available in Amber, ice Blue, clear, clear anti-fog, grey, grey anti-fog, indoor/outdoor and flash mirror. Polycarbonate lenses absorbs 99.99 percent of harmful UV a, b and C, 180-380nm.