oakley sutro sky. oakleyâ„¢ sutro revolutionises the look of traditional sports glasses. inspired by the everyday life of urban cyclists, the close-fitting sunglasses create a distinctive and versatile look and protect against wind and weather. the prizmâ„¢ lens technology ensures improved vision and, thus, ensures that active athletes get through the day fully motivated and safely.prizm sapphire lenseslight transmission: 12 %