Product Features50/50 Hybrid Shell50/50 hybrid shell construction combines Endura®-shell and in-mold shell constructions for wear-and-tear resistant durability and featherweight performanceActive VentilationActive ventilation with 23 total vents let you easily fine-tune your temperature with open settings for maximum airflow, closed settings for locking in heat, and everything in between; Goggle ventilation channel helps maintain airflow to goggles to help reduce foggingMIPS®MIPS Multidirectional Impact Protection System is a revolutionary technology that mimics the brain's own protection system with a low friction layer that lets the helmet slide relative to the head360° BOA® Fit SystemIn-Shell 360° BOA® Fit System integrates a fit dial directly into the helmet and provides for micro adjustments in a complete halo around the wearer's headFidlock®Fidlock® snap helmet buckle uses magnets to allow you to open and close the buckle with one hand even when wearing gloves