Oakley encoder white prizm sapphire sunglassesengineered for use across multiple sporting activities, the oakley encoder white prizm sapphire sunglasses takes sport performance eyewear to the max with hat and helmet fit functionality in mind.the advanced wrap design creates a revolutionary look with superior coverage and an enhanced field of view. The lens is also optimised with prizmtrade lens technology which boosts colour and contrast, allowing you to see in further detail.the temples are built with o mattertrade which is lightweight but durable and is specially formed with a low profile to fit with hats and helmets. Unobtainiumreg earsocks and nosepads further stabilise the fit and ensure that the glasses stay in position during your most intense movements and against perspiration.lens specificationslight transmission 12%light conditions bright lightcontrast increasedbase lens colour greyfeaturesfunctional sport design with optimised coverage, wider field of view, frame retention and impact protectionadvancements in optical design have allows the lens to be designed with an extended wrap and rigidity in key areas that mimic the structural properties of a frameo mattertrade temples have been designed to be low profile to fit with hats and helmetsunobtainiumreg earsocks and nosepads help provide sport level retention with a non slip grip and all day comfortprizmtrade lens technology enhances colour, contrast and allows you to see in more detailbuy oakley sunglasses from chain reaction cycles, the world's largest online bike store.