Perfect for hunting, fishing, or lounging around, the Spy Dirty Mo Sunglasses are high-performance when needed, yet stylish enough for everyday wear. These sunglasses feature custom-built, high-quality, Matte Black colored propionate frames that are designed to stand up to an extreme amount of punishment. The custom metal details built into the frame provide a unique style that is sure to turn some heads. 8mm stop hinges hold the sunglasses securely on your head for a comfortable fit and also allow easy on/off access. Based on space-age technology,the 8 x 4 base toric ARC (Accurate Radius Curvature) polycarbonate lenses are injected in a unique, tapered shape to provide optically correct, distortion-free viewing at all angles, ensuring against discomfort and eyestrain. They also provide 100% UVA, UVB, and UVC protection to fully shield your eyes against harmful rays. Green Spectra lens tinting offers a soothing effect in nature's green and blue surroundings.