Lightweight, stress resistant O Matter® frame material. Extended wrapped frame geometry to fit medium to large faces. Metal icon accents. Sculpturally integrated hinge mechanisms with dual cam action. Dual lens polaric ellipsoid geometry (two lenses cut from single toric shield). Plutonite® lens material blocks 100% of all UVA, UVB, UVC and harmful blue light. XYZ Optics® for maximized clarity at all angles of vision, even at lens periphery. Exceeds ANSI Z87.1 standards for impact and optical requirements. Grey: Medium to bright light. Excellent all-purpose lens offering truer color perception in sunny conditions.