Oakley's TDF Radarlock Prizm Sunglasses complement that shiny new cycle you purchased in France for race day. Oakely's Prizm technology shapes the Plutonite lenses to enhance the road so you can see any rock or pothole that comes your way. Plutonite filters out 100% of UVA, UVB, UVC, and harmful blue light up to 400nm, while High Definition Optics helps the lenses exceed the American National Standards Institute's ratings for optical clarity, visual fidelity, and impact resistance. Oakley's Switchlock system makes all other interchangeable lens systems look like ancient artifacts, now with a simple mechanism for simple and speedy switching. The TDF Radarlock also features Oakley's stress resistant, lightweight O Matter frame with slip resistant Unobtainium pads at the nose and temples. Three Point Fit ensures a personalized feel regardless of your face size.