RE: Zurich Sunglasses?
Wow - a subject where personal preference is VERY important!
I like Zurichs, but found that they were gereally a little too dark for my tastes. They come in a number of colors / densities, and they're effective at what they do. My haze/fog glassess are the rose/silver Zurichs.
They have real lifetime warranty and will replace broken earpieces, etc.
I find that for most conditions I greatly prefer to fly with polarized lenses, and find my best flying sunglasses are an inexpensive pair of Foster Grant clipons that go right over my regular glasses.
Just my $.02