oakley sports sunglasses with a lightweight frame and prizmâ„¢ lenses. oakleyâ„¢ sutro revolutionizes the look of traditional sports eyewear.inspired by the everyday life of urban cyclists, the close-fitting lens creates a distinctive and versatile look and protects you in wind and weather. the prizmâ„¢ lens technology provides improved vision and thus ensures that you, as an active athlete, are fully motivated and safe throughout the day.prizmâ„¢ lensesprizmâ„¢ is a revolution in lens optics built on decades of colour science research. prizmâ„¢ lenses offer unprecedented control of light transmission, precisely matching colours to maximize contrast and improve visibility.light transmission: 20 %light conditions: variable