I bought these as a replacement to a pair of Maui Jim's that I loved. The sales rep suggest Revo as something that I might like better. That did not meet expectations. While I found the style on-par with the Maui Jim's, the durability was an extreme issue. I am very careful with my glasses (never wear on the top of my head and haven't dropped them), but both lenses cracked at the outside attachment point. I thought it was just a freak thing, until after receiving a warranty replacement from SGH and that pair did the exact same thing!!!
I'll go back to Maui Jim.