The Oakley Half Jacket2.0 XL sunglasses wrap your vision in the razor-sharp clarity of High Definition Optics, with lightweight design that can take punishing abuse.The Half Jacket 2.0 XL boasts the same lightweight O Matter frame material and Unobtainium components that keep it comfortably in place, even when you're dripping with sweat. The Three-Point Fit won't hook your ears like ordinary frames, and it keeps the lenses in precise alignment so they can give your eyes full uncompromised vision.Using HDO lenses, the Half Jacket 2.0 XL feature XYZ Optics which help to keep your vision sharp and accurate all the way to the peripheral edge. The lenses are made of pure Plutonite to filter out all UV, and meet ANSI Z87.1 standards for optical clarity and impact resistance.Frame:_Durability and all-day comfort of lightweight, stress-resistant O Matter frame material_ Comfort and performance of Three-Point Fit that holds the lenses in precise optical alignment_ Unobtainium components that increase grip when you sweat_ Metal icon accentsLenses:_XYZ Optics to extend clarity to the edge of a wide peripheral view_ 8.75 base lens curvature that improves side protection against sun, wind and impact_ UV protection of Plutonite lens material that filters out 100% of UVA / UVB / UVC & harmful blue light up to 400nm_ Semi-rimless design gives open downward view_ Iridium coated lenses that reduce glare and balance light transmission