I am another Serengetti convert. After 20+ years of Raybans, I now swear by the 'S'. The photochromatic lenses are brilliant between cloud layers, and the titanium frames (velocity model) strong, light and look good too. They are available with brown or neutral-grey lenses. Cost over AU$300 but worth every cent. Sunglass Huts stock them in Aust/NZ. Only problem I have with them is, after a few months, I regularly have to retighten the frame screws to prevent lens fall. Found that out the hard/expensive way!
