Frame color: gunmetal Polarized driver lens: brown Anti-Reflective coatings - cancels backside reflected glare Adjustable Nose Pads The Serengeti brand provides the most advanced eyewear technology by combining three industry- defining technologies into one, ultra- superior lens. These three industry defining technologies are UV activated, photochromic lenses that automatically adjust in all light conditions. Spectra Control® which enhances the colour and polarization to reduce glare and relieves eye fatigue. Made in Italy - excellent craftsmanship highest quality materials Ultra-Lightweight glass lenses - 20% thinner and lighter Photochromic technology - adapt to any light conditions Anti-Reflective coatings - cancels backside reflected glare Spectral Control - reduces blue light so colours are crisp and clear