Sunglasses are a year-round staple, which is why we tested these shades in all seasons. With help from a hardy, mixed-interest test crew based in Lake Tahoe, California, we took these sunglasses for spins during mid-winter ski touring and Nordic skiing, on spring river trips and volcano-climbing missions, and while trail running and mountain biking all summer long. Our 13 testers came back with scratched and fogged lenses, broken frames, and feedback on which shades held up the best. This collection of sunglasses represents our favorites for every type of outdoor play.