I don't usually wear sunglasses so I know very little about them. I hope someone here can help me buy a good pair for aviation use. - What are good sunglasses for aviation ? - What features are important for aviation use ? - What is the main difference between the cheap drug-store sunglasses and the expensive designer types ? - Where should I buy them and how much can I expect to spend ? Thanks for any help! -- Andrew Sarangan sarangan@maxwell.uwaterloo.ca stulaser@nortel.ca