Oakley Twitch Sunglasses- No matter how much technology Oakley pours into a frame, the science has to be a work of art. As in the designing of the 2007 TWITCH Sunglass, HIGH DEFINITION OPTICS® (HDO®) became the hard angles and jagged edgework. Enhanced with dual cam hinges and metal Oakley insignias, the lightweight O MATTER® frame combines comfort with durability. Protection includes 100% filtering of all UV plus impact resistance that meets all ANSI Z87.1 standards. Oakley’s authentic styling of the TWITCH is just as aggressive as the technology.