How to use: Put on the helmet and adjust the Action Fit™ system by turning the dial until it fits securely on your head. Make sure the helmet sits level on your forehead. When using, always wear it while skating or cycling. Notice: Check the helmet regularly for any signs of damage. If it has been in a crash, replace it immediately. Don't modify the helmet on your own as it may affect its safety performance. Maintenance: Clean the helmet with a mild soap and water solution. Let it air - dry. Avoid using harsh chemicals or abrasive materials that could damage the shell or liner.