DECENT FEATURES of the Oakley Men's Gascan Sunglasses 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 Optional Iridium coatings and lens tints to reduce glare and heighten contrast XYZ Optics for maximized clarity at all angles of vision, even at lens periphery Exceeds ANSI Z87.1 standards for impact and optical requirements Available with Oakley prescription lenses (2.00 through -4.00 combined power) The SPECS Eye: 61 mm Bridge: 15 mm Prescription Range: 2.00 to -4.00 with cylinder up to -3.00 Available in progressive