How to use: Put on the helmet by placing it on your head and adjust the fit system until it feels snug but comfortable. Make sure it sits level on your head. Note: Always check the helmet for any signs of damage before each use. Do not use the helmet if it has been in a severe impact. Maintenance: When the liner gets smelly from sweat, simply take it out and wash it. Keep the helmet in a cool, dry place when not in use. Avoid exposing it to extreme heat or direct sunlight for long periods as this may damage the materials.