Bolle lightshifter titanium sunglassesboosting your field of vision, the bolle lightshifter titanium sunglasses are high performance cycling sunglasses that optimise your vision and ensure a lightweight fit and comfortable feel.keeping your vision clear the lens is protected with four different types of lens treatment ndash anti fog, anti scratch, oleophobic, and hydrophobic'. '.strtoupper('a')dditionally, the lens is vented to help keep the large lens from clouding up during your most intense rides.the s curved temples and themogrip components ensure an ergonomic fit that stabilises the position of the glasses against sweat and high intensity movement'. '.strtoupper('t')he frame is formed from tr90 nylon, which is incredibly durable, lightweight and flexible ndash for long lasting comfort.featuresanti fog lens treatmentanti scratch lens treatmentoleophobic lens treatmenthydrophobic lens treatmentthermogrip componentssnap hingeoptical clip compatiblevented lensess curved templetr90 nylon framebuy bolle sport sunglasses from chain reaction cycles, the world's largest online bike store.