Ordered these on Prime Day when they were 30% off from Amazon.  Like the way these fit and the overall look, but the glasses creak and I've never had that happen with other RayBan or Smith sunglasses.  Just closing the hinges makes some odd noises at the hinges, almost like there is no grease in the hinges.  They are not fakes, but the build quality is suspect.  They are not too tight and do not 'kick out' when I wear them, so I don't know what the deal is.  Might call RayBan and ask, or try on another pair locally to see if this is expected with the 52mm.