Von Zipper Elmore - The Men's Von Zipper Elmore sunglasses feature a tortoise frame with bronze lenses. They have 100% UV protection, base 6 spherical, impact resistant CR-39 lenses, and stainless steel optical hinges. They also have a wire injected temple core, and a handtooled acetate frame. Grilamid® lightweight nylon frames offer a consistent fit and flexibility at any temperature, and they are impact resistantHand tooled acetate frame. Facemelt limited edition frames feature one-of-a-kind colors that stand out in the sunshineFrames come with gray-tinted chrome lenses for true color perception in bright conditionsImpact-resistant lenses and Grilamid frame stand up to your beach volleyball abuseSix-base spherical lens.