Smith Optics Fairground Sunglasses in Frame Color Black with Polarized Brown Lens (VLT 15% ). Comes with a microfiber bag that can be used to clean the lenses. A modern design of a classic women's shape, the Fairground combines a round lens profile with a vintage cat-eye shape and keyway nose detail. The crisp edges and curvy yet slender faceting disguise the subtle performance just beneath.