Featuring fast and easy Switchlock™ interchangeable lens technology, the Oakley Fast Jacket XL Polarized Sunglasses deliver adapt-and-conquer performance for a wide range of environments and outdoor sports. And Fast Jacket open-edge lens design won’t obscure your view when looking downward. The Oakley cushioned lens suspension system eliminates vision-distorting lens stress for dependable interchangeable lens security and optimal clarity. High-strength, metal-injection-molded stainless steel Switchlock push-button mechanism for fast, easy lens changes. High Definition Optics® (HDO®) with patented XYZ Optics® technology offers clarity at every angle and vibrant, high-contrast images. Ultrapure Plutonite® lens material filters out 100% of UVA, UVB, UVC and harmful blue light. Lightweight, stress-resistant O Matter® frames maximize comfort with a three-point fit that eliminates pressure points. Unobtainium® ear-stem sleeves provide increased grip when you perspire. Includes two lenses for performance in any light conditions: an Oakley HDO polarized lens that minimizes glare on bright, sunny days; and an Oakley HDO lens made specifically for increased acuity in low-light condition. Lens-impact protection meets ANSI Z87.1 standards. Also includes two sizes of interchangeable nose pads, an Oakley Soft Vault case and the Oakley Nano-Clear Hydrophobic Mini-Pen that lets you apply a special coating that makes water bead up and roll off the lenses.