The Oakley Airwave Goggles are one of the most advanced, quick-changing lens goggles that you can have. But even the most advanced goggle can't handle every lighting condition that the mountain can and will throw at you. Having different tinted Oakely Airwave lenses on you while you're on the mountain will allow you to have the right lens no matter what the light looks like. And this means that you'll never not be able to use your awesome Airwave goggles. Take that nature.