classic eyewear model with modern features. the oakley® sylas sets new standards in the world of classic eyewear models and impresses with its sophisticated functions for everyday wear. this model goes far beyond the standard and not only offers a headgear-compatible design for added comfort, but also scores with a lightweight frame. equipped with the revolutionary prizmâ„¢ lens technology, it guarantees maximum contrast and outstanding visibility. it also combines the outstanding properties of prizmâ„¢ with the benefits of oakley hdpolarised technology, which effectively filters out glare for unprecedented clarity.