Bought this 3-pack, knowing they were cheap.  Was initially happy with these sunglasses.  Sure, they were a bit cockeyed from the start, and if you handled them, they were obviously cheap, but from a distance they looked fine, and they served their purpose.  Fast forward ~ 2 months, all three pairs have had the coating deteriorate to the point I can no longer use them - big parts of the lens are simply clear now.  The kicker is that 2 of the pairs saw *maybe* 3 days of use, total.  Would not buy again, even for the cheap price.