How to use: Put on the helmet and adjust the fit system to ensure a snug and comfortable fit. Make sure the helmet covers the appropriate part of the head. Note that the helmet is designed for young riders and should be used within the recommended age and size range. Avoid using it in extreme conditions. Maintenance: If the sweat smell becomes strong, take out the moisture - wicking liner and wash it. Keep the helmet in a cool and dry place when not in use. Check the helmet regularly for any signs of damage, and replace it if there are cracks or other issues.