The Oakley Half Jacket Polarized Sunglasses are Oakleys first dual-lens eyewear with interchangeable lenses. This chameleon lets you adapt instantly to any light condition. Polarized lenses cut horizontal glare out like no other lens can, making them perfect for boating, driving, and all water sports. When the sun fades, switch to a new set of lenses and change your entire outlook on life. Accented with true metal icons, the lightweight O Matter frame includes Unobtainium earsocks and grip anchors. The open-edge design extends your vertical field of vision, and each set of lenses retains the peripheral clarity of XYZ Optics. Replacement lenses sold separately.