Description of Von Zipper Clutch Sunglasses - Black Satin Stripes / Grey From the moment a new design leaves the darwing board through the final quality certification every VonZipper product is held to stringent quality control procedures to ensure that your VZ's will not let you down. Features: 100% UV Protection Base 8 spherical lens Nylon grilamid frame Impact resistant polycarbonate lens Stainless steel optical hinges