I already had a pair of Costa Cat Cays with blue mirrored 580g lenses. Unfortunately, I got mad and threw them (stupid, I know) and broke one of the lenses. So, I needed something to take their place, at least temporarily.
Assuming these are authentic, the plastic lenses are nowhere near as good as the glass. I also prefer the cat cay frames as caballito is a little small for my face. They are good, but not great, whereas I absolutely love my cat cays.