The Pro SL helmet builds on the success of our award-winning flagship MT500 bringing the enhanced protection of a full Koroyd core to the road rider. Low weight exceptional ventilation a host of novel features and stunning looks come together in this premium road helmet. KOROYD TECHNOLOGY Integrated into the core design of the Pro SL Cycle Helmet Koroyd’s engineered tubes absorb energy in a more linear fashion than traditional bike helmets. In the event of impact the Koroyd tubes crush homogenously absorbing g-force created by the rider’s momentum and lowering the chance of injury. SUPERIOR PROTECTION The Pro SL meets the Koroyd Safety Initiative which sets voluntary lower limits to outperform standard helmet safety requirements. The KSI limits for maximum deceleration and HIC significantly reduce the correlated risk of severe head injuries in real life accidents. Looking at peak g values the KSI limit of 183g reduces the risk of fatal skull fracture to less than 5% from a suprsingly high 40% at the levels required to meet CE certification. AIRFLOW The Koroyd core also allows a more open structure to promote airflow while the tubes of Koroyd structure within the vents maintain a linear flow of air to maximise breathability cooling and comfort. Super lightweight design M/L 238g Integrated Koroyd® core for improved impact absorption without weight penalty Large vents with angled Koroyd® tubes for increased airflow Meets the Koroyd Safety Initiative KSI significantly reducing risk of skull fracture beyond required standards Front eyewear dock One-hand micro-adjustment fit system Antibacterial fast wicking spacer fabric padding Covered by Endura’s Crash Replacement Policy and Endura Product Guarantee Certified to CE Standard EN1078 + A1 02/2013 90 Day Satisfaction Guarantee Please note – Endura have confirmed this helmet does not come with an additional padset despite an error in the manual stating it does.