Polarized for the past 10 years. I have 2 pair of Smith's. One is black polarized the other is brown polarized. Brown's are great for more flat light conditions and they enhance depth perception. They are great for driving around when there's lots of snow as it cuts glare significantly, both off the ground and off other vehicles. Its true they are recommended for boating, to cut glare off the water, though there is a similar effect on snow. They also allow you to see "through" water a bit better. Only downside is that it is difficult to see LCD screens with polarized lenses.