Serengeti RX Eyewear Bianca Sunglasses (Gltter Tortoise, Polar Drivers)

The Serengeti Bianca's cosmopolitan style stems from its curvy, modern eye shape that keeps you looking at the world in a positive light. All Serengeti lenses offer the latest in photochromic technology, which constantly lightens and darkens throughout the day to ensure you see every detail. Using only the highest-quality injected nylon for superior durability, these fashionable frames have the added benefit of being exceptionally light, chemically resistant, extremely flexible and comfortable.