Dirty Dogs Blade Sunglasses Great value and subtle styled performance, with polarized lenses. Stay looking sharp with the Blade Sunglasses from Dirty Dog.With a high-quality, narrow Grilamide TR90 plastic frame, the sunglasses are lightweight, durable and flexible, yet super strong with 100 memory, allowing the frames to bounce back to their original shape. This makes them perfect for extreme sports and wild adventures. Polycarbonate polarized lenses ensure vital defence against harmful rays - anywhere from the top of the mountain to the middle of the ocean. By blocking reflected horizontal glare, the glasses further prevent damaging light and strained vision, maximising UV protection and optical clarity. Coated with Dirty Dogs specially developed hard coating, the Blade Sunglasses are scratch resistant for a long-lasting eyewear choice.