On Friday, April 13, 2012 4:38:09 AM UTC-5, mikegolf wrote:
Hi,
has anyone comparison of those sunglasses? I'd like to buy one of
these, however not quite sure which are best for soaring

Thanks in advance,
MG

You might also consider Scheyden aviator sunglasses. They have a flip up frame (both regular and prescription) that is extremely useful while flying when there are clouds and you are going from bright sunlight to shade under a cu. Also good for looking at charts, PDAs, etc without having to physically remove your sunglasses.

A bit expensive, but I love mine. Excellent optics and a rugged frame.

http://www.airplanegear.com/scheyden.htm

Kirk
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