Bell Mens MX-9 Mips Spark Gloss Blue/Yellow Motorcycle Helmet Features: The MX-9 helmet is designed for the challenging off-road environment, with a tough polycarbonate shell to withstand rock and dirt projectiles. It features the Mips energy management system, providing added protection against rotational forces during impacts. The helmet includes an adjustable visor for personalized fit and protection from debris. The velocity Flow ventilation system ensures optimal airflow, keeping the rider cool and comfortable. The MX-9 comes with a removable, washable, and anti-microbial liner, making it easy to clean after muddy rides.