Oakley Cybr Zero Photochromic Sunglasses Fashionable, futuristic and functional, the Oakley Cybr Zero Photochromic Sunglasses give effortless performance for a multitude of sports. The rimless design is incredibly low in weight, engineered to give a barely there feel. The lack of a rim also gives an incredible field of view, ensuring you get a clear view forward and impressive peripheral vision too. The ventilated lens increases airflow, keeping you cooler on hot days and ensuring sweat vapour doesn't cause fogging when you're working hard. Lightweight O Matter™ temples feature integrated Unobtainium® ear socks, securing the Cybr Zeros in place come what may. Lastly, the clear photochromic lens adapts to changing light conditions, making it ideal for low light and days that are cloudy and overcast. Lens Specifications Lens: Clear Photochromic Light transmission: 14 - 23% Light conditions: Changing conditions Base lens colour: Clear