A Metal blend that defies both gravity and abuse, C-5 alloy is decked with refined bridgework and mounted with enhanced earstems on retooled hinges. All Square Wire® 2.0 Spring Hinge frames are held comfortably in place by the stable tension of a spring hinge mechanisms. Available Iridium® lens coatings tune contrast for any light condition while patented XYZ Optics® maximizes peripheral clarity. Soft Unobtainium® earsocks increase adhesion with moisture to maintain the comfort of a secure fit. All Oakley eyewear is warranted for one year from the date of purchase against manufacturer defects.