I recently bought some Rayzor sunglasses for £13.99 on Amazon, the Rayzor website sells them at £69.95! They seem pretty good although I haven't used them on the slopes yet. They are really for skiing, but have a couple of things that would be useful while walking in hills, i.e a head band strap to keep them firmly in place and foam padding on the frame which should reduce the wind getting to your eyes. They seem to have all the right UV credentials. I would be interested if anyone has use them in 'anger' and what the results were. I will put a review on Amazon when I return from our next skiing trip to Morzine in couple of weeks time.