New Design Aluminum Magnesium Polarized Sunglasses High-Strength Lightweight Materials We’ve made sure to pour the highest grade of every feature into our VEITHDIA Polarized Sunglasses. Our lenses are Polarized UV 400, Scratch-resistant, and Waterproof as well. The frame of our sunglasses is made with PC material allowing high flexibility- Using PC material in general creates a super Durable, Flexible, and lightweight frame.. Usage Occasions Photochromic-looking sunglasses can do a good job of stopping the dazzling effects of sunlight when you are driving, running, fishing, biking or other outdoor activities. Keep your safety always by your side. No Matter the Day Or Night, It Works Well Our sunglasses are made of special photochromic polarized lenses. When driving at night or in a dark environment, the lenses are light-colored transparent to enhance visibility while effectively reducing glare. During the daytime, it can effectively filter the strong light, enhance visual sharpness, reduce eye fatigue, and keep the eyes always in the most comfortable state of outdoor activities. https://www.lazzaco.com/products/new-design-aluminum-magnesium-polarized-sunglasses?twclid=2-3heuw891igmeewroyjdh375qc