You are correct about the polarizing film -- our polarizing film is safely sandwiched between layers of the lens. It's the mirror coating which is delaminating. We had a problem batch of lenses come through last summer where the lenses would fail under really specific environmental conditions. We caught it at the source and tried to identify and pull as many affected pairs as possible, but some slipped through and made it to the market. We completely overhauled our supplier and QC process to prevent this from ever happening again.
If you do ever have a problem, we offer a lifetime warranty on every pair we sell and will send you replacement lenses or replace the entire pair. Just contact our customer support (firstname.lastname@example.org) and Alicia or Julia will get you set up ASAP!
Date published: 2018-02-11