Oakley Half Jacket in silver is essential gear for world-class athletes, and version 2.0 sculpts performance, protection and comfort with a new dimension of style. This interchangeable lens design lets you adapt your vision to the environment while giving you the premium clarity and protection of High Definition Optics® (HDO®). The increased contrast of Oakley's G30™ tint is matched with Oakley HDPolarized to block performance-killing glare. Best for all sports in grass/bright sun to increase visual contrast and boost depth perception bringing out the detail in grass and optimizing the vision for golf. The sculpturally entwined Unobtainium® earsock update enhances non-slip performance and comfort.