Design & Technology: Bike helmet designed with commuting and storage in mind Highly-durable design is lightweight to avoid extra bulk KinetiCore Controlled Crumple Zones absorb the force of both direct and rotational impacts in the event of a crash to re-direct energy away from your head for optimal protection Flexible ABS outer shell construction is made to handle smaller impacts with ease Easy-to-use TurnSys dial adjusts the helmet for a more customizable fit Reinforced hole allows you to easily secure your helmet to your bike This helmet scores a high 4-star protection rating from Virginia Tech, which uses the STAR evaluation system to determine the helmet's ability to reduce linear acceleration and rotational velocity of the head resulting from a range of impacts a cyclist might experience Compatible with the Universal Lazer LED light for added visibility CPSC 1203 COMPLIES WITH U.S. CPSC SAFETY STANDARD FOR BICYCLE HELMETS FOR PERSONS AGE 5 AND OLDER