Serengeti Panaro Sunglasses - $ 164.99 Serengeti Panaro Sunglasses: Serengeti Panaro sunglasses are part of Serengeti's S-Flex Collection and are designed with lenses that are shatterproof & scratch/impact-resistant. Each lens eliminates glare reduces eye fatigue. All Serengeti sunglasses are designed with Photochromic lens technology making each lens adjust to light changes in the environment. Size: 57-18-135 mmFrame: Satin Gunmetal Lens: 555nm Gray Polarized