The Octal X helmet has been developed from the same technology & design as the award-winning Octal road helmet notably the extreme ventilation low weight unibody shell construction & aerodynamic efficieny. To perfectly suit the needs of cross country mountain biking the Octal X has added robustness & protection. The inclusion of POCs proven aramid bridge technology adds structural integrity & guards against impact penetration. A fundamental feature in the Octal X’s enhanced performance & saftey is the extended helmet shell which covers more of the helmet liner ensuring that the helmet has enhanced strength properties with very little increase in weight. Fully wrapped unibody shell construction Light weight Highly ventilated using unique ventilation design Aramid bridge technology integrated with liner High performance EPS shell covering more of the liner Size adjustment system Straps molded into liner Eye garage to keep your sunglasses WEIGHT 210g (M-L)