Description of Electric EC-DC Sunglasses - Black Grey / Black Grey Poly Polar All of Electric's sunglasses have the highest grade polycarbonate lenses available and block 100% UV rays and filter out UVA, UVB, and UVC, the 3 most harmful of the sun's rays. Electric's frames are constructed of mold injected grylamide, which has the best memory retention in variable temperatures. Features: 100% UVA & UVB Protection 8 Base Mold Injected Grilamid Frame 8 Base Polycarbonate Lens 5 Barrel Stainless Steel Optical Hinge