Amphibia Genesis Sandstorm Sunglasses, Gun Metal Gray Our Genesis line uses our titanium flex bridge and Ariel technologies; The Genesis line has a Standard Flotation Rating All of our lenses have anti-reflective coating that not only helps eliminate fogging but also provides 30% more scratch reduction All Amphibia lenses block 100% of all UVA, UVB, and UVC rays, are 100% polarized lenses with Aquaphobic Coating on both front and back To repel water and other substances as well as being fully Anti-Reflective Coated