Ready for action, the Tifosi Elder sunglasses are perfect for long runs and bike rides, but stylish enough to wear on rest days around town. . . . . . . . Grilamid TR 90 frame offers an extremely high alternative bending strength, low density, and high resistance to chemical and UV damage. Brown Polarized lenses provide 11.2% L.T. light transmission, enhance color, and are perfect for use in really bright sunlight. Lenses are made of scratch resistant, shatterproof polycarbonate. Lenses are vented for increased air circulation to prevent fogging and keep you cool. Hydrophilic rubber nose pad and earpieces ensure a non slip fit. Adjustable nose pads allow for customizable comfort. All Tifosi sunglasses provide 100% UVAUVB protection. Fits medium to extra large faces.