The Norg has been specifically designed for the needs of skiers and snowboarders who venture into various mountain regions under all possible conditions that Mother Nature can present. The Norg features outstanding lens change capabilities utilizing the Gravit8 magnetic system. Gravit8 offers eight magnetic contact points that ensure a secure fit while allowing for easy lens changes and unparalleled performance. Combined with the 3DPlane lens technology, you will experience an unmatched fit from frame to lens with uncompromising performance. The Hiper Contrasting Lens Technology filters specific color wavelengths, resulting in higher contrast. An additional lens is included, as well as a magnetic protective cover that adheres to the goggle case over the attached goggles, protecting both lenses during storage. A microfiber goggle bag with a divided pocket for extra lenses is also included.