Oakley Half Jacket XLJ The XLJ version of Oakley's Half Jacket frame offers extended lens coverage for larger faces or for those who prefer an expanded field of view. This unique eyewear lets you adapt instantly to any light condition. When the sun fades or flares, switch to a new set of optional lenses and change your entire point of view. Or just enjoy the freedom to customize your look instantly. Accented with true metal icons, the lightweight O Matter frame includes Unobtanium earsocks and grip anchors. The open-edge design extends your vertical field of vision, and each set of optional lenses retains the peripheral clarity of XYZ optics. That's just one of the patented innovations that give Oakley's High Definition Optics its unbeatable performance.