Athlon Optics work with their manufacturing partners that own and operate vertically integrated manufacturing facilities, utilizing EP-level cleanrooms for assembly, sophisticated high precision CNC machines, advanced lens polishing, and superior coating equipment. All their optical products are tested for waterproofing, fog-proofing, and shock-proofing before they ship. By holding the utmost stringent quality standard and rigorous testing requirement, they’re confident in offering a life time warranty for all optics.