SI Flak Jacket Polarized XLJ Sunglasses

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Designed for world-class athletes, the Flak Jacket XLJ is a frame that performs when you need it most, with XLJ, HDPolarized lenses for enhanced peripheral vision and UV protection. Built of O-Matter™ stress-resistant materials, the frame is lightweight and durable for all-day comfort, and the Unobtanium® earsocks and nosepads keep everything grounded and secure, even during fast movement and heavy perspiration. 

Product Details


High Definition Optics® (HDO®) is a collection of patented technologies that allow Oakley eyewear to meet or exceed the testing standards of the American National Standards Institute for optical clarity, visual fidelity, and impact resistance.


  • Oakley HDPolarized lenses filter out 99% of reflected glare without the haze and optical distortion that can come with traditional polarized lenses.
  • XLJ Lenses for enhanced peripheral vision.
  • ANSI Z87.1 rated optical precision and impact resistance
  • Unobtanium® earsocks and nosepads keep glasses in place, increasing grip despite perspiration
  • O-Matter™ stress-resistant frame material is both lightweight and durable for all-day comfort and protection

FRAME FIT: Standard

  • Lens Width: 63 mm
  • Bridge Width: 14 mm
  • Lens Height: 37 mm
  • Temple Arm Length: 133 mm