Durability and all-day comfort of lightweight, stress resistant O MATTER frame material. Comfort and performance of Three-Point Fit that holds lenses in precise optical alignment. Dual lens features POLARIC ELLIPSOID geometry. Optical precision and impact resistance meet or exceed Z87.1 optical and basic impact standards. UV protection of PLUTONITE lens material that filters out 100% of UVA/ UVB/ UVC & harmful blue light up to 400nm.