Vision Cylindrical Carbonic-x lens for clarity and impact resistance with built-in Airflow technology for active ventilation 5X anti-fog inner lens for advanced fog-free performance ChromaPop™ lenses enhance contrast and natural color to make the details pop Smith MAG lens change system uses magnets for quick, easy lens changes Fit / Integration Designed for ultimate integration with Smith helmets for maximum comfort, venting and fog-free performance QuickFit strap adjustment system lets you find the right fit fast Ultra-wide, silicone-backed strap stays put Three-layer DriWix face foam wicks moisture for a fog-free fit Responsive Fit frame adjusts to your face for a precise, comfortable fit Medium / Large fit; Available in Low Bridge Fit for faces with a lower nose bridge and/or a wide or high cheekbone shape