Spy implemented a nifty electrochromic lens into its award-winning Ace goggle for 2018-19. The California-based company utilizes a Spy-logo-shaped button on the strap that allows the user to toggle between three different lens tints depending on weather conditions. With Visible Light Transmission options suitable for flat, mixed and sunny light conditions, and an impressive eight- to nine-hour battery life, the technology creates a lens nearly impervious to Mother Nature’s sporadic light show. If you’d prefer to never swap lenses and just focus on your skiing, the Ace EC will treat you well.