Color Tint sunglass lenses are made of regular plastic. Plastic lenses are lighter and less breakable than glass lenses. You can grind them into specific shapes to fit any lens frame. These lenses come with built-in anti-scratch and 100% UV protection. You don’t need to pay extra for these features. To coat them with anti-reflection, you need to pay only $ 4.95. It is well worth the investment.