The Nike flat spot sunglasses have max optics that provide precise visual information at all angles of view. Lightweight, injected frame design. Cam hinges snap firmly into place. Unique 4 base eye rim shape. Nike vision tints are scientifically tuned for specific environments. Using light transmission analysis, optimization of colors and light levels are dynamically filtered through each lens. This light architecture allows the creation of lenses with the perfect vision profile for Sport, and environment.