VeloceIncluded Lenses:Light Night FototecFototec lenses with variable tint technology adjust rapidly to changing light conditions for superior clarity and protection. In bright sun, microscopic photochromic particles embedded in the lens react to UV rays, darkening the optics so you'll never squint. With cloud cover, theparticles return to their previous state, letting through more light. Tifosi's Fototec lenses are market leaders because of their lightweight, durability and incredible speed. All Tifosi lenses offer 100% protection against harmful UVA/UVB :Weight: 28gFit: Small-LargeMaterial: PolycarbonateFeatures: Hydrophilic rubber nose pad and adjustable temple Adjustable ear and nose pieces for a customizable, comfortable fit Light Night Fototec: 75-25% Light Transmission Tifosi's widest transmission range Clear-to-smoke transition provides clarity, comfort and protection from dawn to dusk