Aloha<br />I purchased this product and received sometime in February - March time frame.  In July I noticed what I first thought was a damage or scratch that I did. It is unusual as I am very careful with my sun glasses.  I have since discovered that in fact NOT scratched. The polarized coating is literally wiping off.  I talked with the company that provides lens cleaner solution.  i was informed that they have NEVER had a complaint with lens cleaner. It was a defect. If you buy a lens regardless who manufacture you have reasonable expectation that the coating would will NOT wash off.  I feel disappointed with this product.  I see no way to contact the manufacture so my only option is inform here.  I absolutely positively NOT purchase lens from this company.  Aloha<br />Douglas