CHROMAPOP PERFORMANCE LENSES. When you see more you can do more. Our proprietary ChromaPop lens technology enhances clarity and natural color to let you effortlessly see more detail. FRAME: EVOLVE Eco-Material Construction. Our proprietary Evolve material incorporates 53% bio-based material into our injected-polymer sunglasses. Smith sunglasses are the largest eco-friendly sunglass collection in the world. LENS COATINGS: Hydroleophobic water and oil proof coating repels moisture, grease and grime. Smudges from fingerprints are wiped clean easily. Anti-Reflective coatings on the back side of the lens will eliminate bothersome sidelight reflections. FIT: Interchangeable megol nose pads; Medium fit/medium coverage; 6 base frame; Auto-lock hinges. INCLUDED: Microfiber bag Lens width: 56mm Lens height: 44mm Bridge width: 16mm Temple length: 135mm