Best Sunglasses?

[Robert Haynes]

I went to Cabelas today to try on the costas. The fantail model seem to be a little bit snug and slightly small but seemed to block out more light from getting around the frame. The blackfin seemed to be slightly larger and just a hair loose but seemed to be more glass to give you more seeing area but did allow a little more light to come in around the frames. I am going with the green mirror 580 Glass. Just trying to find which model I think fits best. Shouldn't be so picky just a lot of money to spend and I want to get it right the first time with no regrets. Thanks for all the advice