Giro xar helmetthe xar offers all the features youve come to expect from giros top level trail riding helmetsp t the heart of this helmet youll find 17 wind tunnel vents as well as optimized internal channeling and the visor is vented to increase airflow breathability on the xar is incredible theres never been a lid this breathable on dirt even the padding is extraordinary thanks in part to x static fabric features suggested useall mountain trail riding enduracemarathon xc super