Fit and Design: Standard fit sunglasses Suitable for medium to extra large faces Same lens proportions as the original Holbrook, available in a larger size Three-Point Fit achieves superior comfort and performance by holding the lenses in precise optical alignment Lightweight O Matter(TM) frame material provides durability and all-day comfort Keyhole bridge Metal rivets Technology: Plutonite(R) lens material offers top UV protection by filtering 100% of all UVA, up to 400nm of UVB, and some harmful blue light HDO(R) Optics achieve crystal clear vision and impact resistance Prizm(TM) lenses enhance color, contrast and detail for an optimized experience HDPolarized lenses minimize glare via technology that produces a comprehensive, single-layered lens (optional) Additional Details: Optimal precision and impact resistance meets or exceeds ANSI Z80.3 optical and impact standards Available with Oakley Authentic Prescription Lenses California Proposition 65