THE ULTIMATE HIGH DEFINITION VISION OF EVEYTHING IN SIGHTNo other sunglass brand can claim to combine three industry-defining technologies into one ultra-superior lens. Then again, innovation has always been inherent in our DNA. With gradually adjusting Photochromic lenses, naturally color-enhancing Spectral Control filters, and glare-reducing Polarization, every Serengeti lens is unique. With that, achieving clarity in life is not the end game — but rather, the beginning. You are now able to stop looking at the world and start really experiencing it. | ULTRA-LIGHT MINERAL LENSESOur mineral lenses are made with borosilicate optical glass, from Corning. A full 20% thinner and lighter, our Borosilicate mineral glass lenses are finer than any other lens. They provide the best visual acuity you could ever experience. Every pair of Serengeti mineral lenses is unique: each Photochromic lens passes through a Hydrogen-fueled Lehr furnace, which activates the Spectral Control technology - with varying temperatures that determine the proprietary lens hue. They are also chemically tempered to ensure scratch and impact resistance. To complete this unrivaled visual experience, an anti-reflective coating is added to the backside of the lens, canceling the scattering light that causes reflective glare. | NYLON TR90 FRAMEUsing only the highest-quality injected Nylon TR90 for superior durability, these fashionable frames have the added benefit of being exceptionally light, strong, chemically resistant, and extremely flexible and comfortable. |