SHOP OAKLEY REPLACEMENT LENSESHALF JACKET® 2.0 XLOakley's Half Jacet XL 2.0 sunglasses frame uses interchangeable lens technology to let you swap out the lenses according to changing needs or changing conditions. The impact protection is uncompromising, and the visual clairty is excellent due to the Patented XYZ Optics® . The extreme wrap extends visual field to the edge of 8.75 base lens curvature, which opens your peripheral view and improves side protection.Oakley has once again researched and developed a new technology in its Prizm lenses, which is now offered in the award-winning "Flak Jacket" sunglasses frame. Oakley Prizm Lens Technology lenses are designed to filter out specific points of the light spectrum that detract from contrast, and to reveal the light waves that offer additional contrast. For the Golf collection, those light waves are specifically studied which pertain to grass, trees, and golfing terrain. Prizm lenses are color tuned for specific sports and environments to provide greater visual detail and sharper color contrast. It's a lens technology specifically engineered to correspond with different environments. Prizm goes beyond tinting. It fine-tunes your vision to the surrounding elements. It is an evolution of lens technology that allows you to see all the minute details of the terrain, to compete with confidence, and to react faster and with greater control.