Optical distortion is virtually eliminated by the polycarbonate, decentered lenses in these Tifosi glasses, sparkling with "Euro-Pro" aesthetic. Glare Guard reflective lens coating reduces glare, decreasing eye fatigue without compromising the wearer's ability to distinguish terrain. Built to flex on impact rather than shatter, these lenses are also vented to decrease fogging. Virtually indestructible Grilamid TR-90 frame serves as the construct for the hydrophilic rubber adjustable ear and nosepieces that increase grip when exposed to perspiration. Case and microfiber cleaning bag included. Tifosi Tyrant Fototec Gunmetal. One-lens system changes with light conditions for effective function dawn to dusk.