I use Adidas Gazelle's.
They are well polarized and wrap around pretty well. Pricey, but I use them for x-country skiing, cycling, alpine skiing, general use, fishing as well as moderate mountain work.
Interchangeable lenses, but only the Brown is polarized. That's OK, as the water on my home waters is usually slightly yellow. Poly lenses, so the ˘ptics are pretty crisp.
Lense color is VERY important. If you're one of those lucky ones with crystal clear water, Blue lenses might be better, but as soon as one gets into water that have tanins leaching in (like in cedar forests), the yellow, brown or amber lenses might help to pick out details more.