POC Ora Roll Off SystemNew for 2018 Poc introduces new safety and vision technology, and the POC Ora Roll Off System happens to be one of those newly released innovations. It features enhanced ventilation zones, a bike specific design and various lens options offer incredible comfort, precision and field of view. The POC Ora Roll Off System offers a fast and easy to use way of retaining the clearest vision through even the muddiest of riding conditions.FeaturesEasy to use Roll Off system to retain clear visionOptical grade polycarbonate (PC) outerlensCellulose propionate (CP) inner lensAnti scratch and Anti - fog treatedSize GuideOne Size | POC Ora Roll Off System