Gear up with Oakley Flak Jacket XLJ sunglasses for men. Oakley's proprietary frame technology, O Matter, ensures these shades are lightweight, resist impact, and don't lose their shape even after years of wear. Oakley applies its innovative Unobtainium to the nose pads and temple tips for excellent non-slip grip. Bayonet temples allow you to quickly slip on or remove the frames, and the slight inward curve keeps them comfortable around your head. Stylish and long-lasting, these lightweight sunglasses will complete your active look.