Key Features: The next generation of our best-selling DIRT LID now with Zone Flex technology,Additional Retention system for perfect fit,The EPS liner is made of segments that can flex giving more comfort and allowing for more ventilation,The segmented EPS construction gives a more comfortable fit with improved airflow,Lightweight ABS shell,Fidlock® magnetic buckle for easy, single-handed fastening and release,Large vents to keep your head cool,Removeable pads for easy washing and tailored fit,Weight: 450g,Exceeds EN1078 safety standard for bicycle helmets.