Porsche Design P8478 Iconic Sunglasses W Yelloy Gold/Blue Gradient Unique & Innovative System : The iconic Porsche Design P8478 sunglasses were the first in the world to have an interchangeable lens system, making it versatile and adaptable to different lighting conditions . High-Quality Construction : Made with extremely lightweight titanium frame and high-resistant coated polycarbonate lenses, creating a design that's both stylish and functional . Fashionable & Protective : The teardrop lenses in the sunglasses can be easily changed with a quick-lock system that you turn to unlock and then replace with another set . Kit Inclusions : It comes with a case , a cleaning cloth , an extra pair of lenses and a product quality card, completing your premium purchase experience and making it a great kit as a gift for your loved ones. Your New Summer Essential : Protect your eyes from harmful rays and use it whenever the sun's out ! Click 'Add to Cart' now and treat yourself to this new daily staple or as a gift for a family member or a friend . SPECIFICATIONS : Model : P'8478 / Frame Color : W Yellow Gold / Lens Color : Blue Gradient / Extra lenses Color : Brown / Temple Length : 135mm / Lens Width Options : 60mm , 63mm , 66mm , 69mm Bridge Size : 10mm / Frame Material : titanium / Gender : Unisex / Type : Aviator ​​​​​​​Made In Japan Every Porsche Design P'8478 frame has a Serial number provided by the manufacturer and is attributed to an identity card that verifies the originality of the product . The number is located on the inside of the frame bridge