Now I personally love the lenses that were in my short fuse glasses for really bright days, but struggled toward the evenings, cloudy days, or really shaded trails. Enter the light adaptive lenses. These took literally 1 minute to swap out (after watching the video), and are quite responsive to light. They do not change instantaneously, but they are fairly quick to adjust either dark or light. I would say they are comparable the other lenses I have used like this, but these come with better looking glasses, multiple lenses, lower prices, and top notch customer care.
