What makes this company great is Q.C. & M.Q.
What makes this company great is that I've worn the metal Aviator 65 lens for 5+ years, and only after they fell off my shirt (and got stepped on...) did I need to seek out a new pair of glasses. The quality control and material quality of this brand is why I came back, and why I prefer GUNNARs over Ray Bans!