I have four pairs of Zeiss sunglasses. Two with 80% light reduction
and two with 70%. I think the 70% works perfect under all soring
conditions, but probably not so good for skiing. The 70% is recomended
he http://www.streckenflug.at/shop/prod...products_id=39.
I really like the "Silhouette Rimless"-style together with a typical
soaring hat. I ordered a pair with anti glare and anti reflex from
http://www.brillen-kueppers.de/, but I cant' find that model anymore.