An essential factor when it comes to having a high-quality day on the slopes is making sure you have high-quality vision at all times. These goggles are about as good as it gets when it comes to maximized vision, regardless of the conditions. Built with technology that allows for high-contrast, terrain-defining clarity. The goggles come equipped with anti-fog treatment and full-perimeter vents that are guaranteed to fight off fog in the gnarliest of conditions. Additionally, a precise helmet-to-goggle fit and magnetic lens-change technology make comfort and convenience a guarantee. Also packaged with the M4s is a facemask that can be seamlessly integrated with the goggle frames magnetically.