The Specialized Miura Road Optics, available in both photochromic and non-photochromic non-shifting Dark-State NXT lenses, are the perfect fit for the ProTour cyclist or just the occasional rider. The adaptalite lenses automatically adjust to existing light conditions, which can be of big help when the clouds are shifting in and out. The lenses also feature a unique filter which makes red colors brighter for enhanced safety. The frames are made with molded grilimid, making them strong and durable. You can purchase the Specialized Miura Road Optics at the Specialized online store for $90 to $145.