Our patented Happy Lens Tech enhances color and contrast and is scientifically tuned to boost mood and alertness, providing a visual experience unlike anything else Anti-fog 5.5-base ARC spherical dual-lens with anti-scratch protection provides increased optical clarity Spy Fingerprint-free Lock Steady 2 quick-change system lets you change lenses with the slide of a lever Comes with a free premium bonus lens so you’re covered in any light conditions. Anti-scratch coating provides enhanced impact protection Low-profile frame for improved fit, huge peripherals, and our widest field of view With the lowest profile and widest peripheral view of any premium SPY+ goggle, the Legacy features our world-renowned Happy Lens Tech and fingerprint-free Lock Steady 2 quick-change lens system. With slick style and interchangeable lenses, skiing and snowboarding will be one heck of an experience. This is the snow goggle your eyes and helmet have been waiting for.