Serengeti 6415 Passport Sunglasses Vintage Serengeti 6415 Passport sunglasses feature a distinctively thick matte gold front frame and matching matte gold ear stems, a perfect color combination for the Serengeti mineral glass lenses. You'll note that this frame style has parallels with vintage Revo 1415 sunglasses, for during these years of the 1990s Revo and Serengeti sometimes shared frame designs but each used their own proprietary lens technology to go in them. The unisex Serengeti 6415 frame measures approximately 5.0" temple to temple, and the oval Serengeti lenses measure approximately 1.75" x 1.125" at the widest points with right lens laser etched with the stylized Serengeti S logo Overall, the frame and glass are in excellent condition. But there is a small glass defect shown in the last photo. Does not affect wear and visibility.