The Serengeti brand takes pride in being the world’s best driving sunglasses. Every pair of lenses is photochromic, which allows the lenses to automatically adjust to changing light conditions. Each lens is created using a proprietary hydrogen firing process, so the technology is inherent in the lens and will never wear off or wear out.  The Serengeti MD Aviator are ideal for drivers, pilots, and anyone on the go who needs protection from the sun above.