Originally Posted by sweetandsalt
Costa's are great but Smith Action Optics fishing glasses are hi-tech glass as well. Glass is not only scratch resistant but there is far less distortion than with even high quality CR39 type plastic lenses...polycarbonate is barely optical material but is the lightest. Chose between the Smith and Costa product based on frame style and tint...they are both first rate and worth every penny.
Smith's weigh quite a bit more and clarity isn't even close...
You should try them side by side sometime...
I agree they likely are the two best, but man the Smith's feel heavy on your face in comparison to the Costa's and I personally see much better with the Costa's that may be different for others though as I am sure everyone's eyes are a bit different.