Plutonite lenses offer top UV Protection filtering. High definition Optics (HDO) provides superior optical clarity and razor-sharp vision at every angle. Three-Point Fit holds lenses in precise optical alignment while eliminating pressure points common with frames that hook the ears. O-Matter stress-resistant frame material is both lightweight and durable for all-day comfort and protection. Improving safety, comfort and performance, Oakley HDPolarized lenses filter out 99% of reflected glare without the haze and optical distortion that can come with polarized lenses made with conventional manufacturing techniques.