The Maxx Raven 2.0 has an ultra-lightweight frame making them extremely comfortable. And, like almost every pair of 2017 Maxx HD Sunglasses, the Maxx Raven 2.0 is made from TR90 and includes our lifetime warranty against frame breakage. Available in black with white, light blue, or yellow accents (HD), white with blue accents (HD polarized) and green with black accents (smoke polarized). High Definition lenses enhance contrast by reducing the scattered blue light that causes objects to appear flat against backgrounds. Contrast is improved so objects appear more sharply defined. Colors are bright and vibrant. Glare is virtually eliminated, allowing your eyes to relax and see everything remarkably crisp and clear. The HD lens cuts through haze and glare for optimum visual clarity, even at a distance. Sharpens contrast while maintaining a natural, no-distorted color balance.