large field of vision and best fit for sport . oakleyâ„¢ sutro revolutionises the look of traditional sports sunglasses.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. in the lite version, the sutro comes with a semi-rimless design for an even wider field of vision.oakley prizmâ„¢ lensesprizmâ„¢ is the revolution in lens optics. by fine-tuning individual waves of colour, prizmâ„¢ sharpens visual acuity to reveal nuances that would escape the naked eye. with ordinary sunglass lenses, the environment appears dull and flat. prizm lens technology makes everything look alive and vibrant.prizm road lensthis lens is used on sunny and slightly cloudy days and increases contrast.transmittance of visible light: 20 %