Using this Bell Sidetrack kids helmet is a breeze. First, adjust the helmet to fit your child's head using the one - handed Ergo Fit system. Make sure it's snug but not too tight. The helmet should sit level on the head and cover the top of the forehead. When your child is riding, the snap - in visor can be added to protect their eyes from the sun or debris. After each use, check the helmet for any signs of damage like cracks or loose parts. If it gets dirty, use a mild soap and water to clean it gently. Avoid using harsh chemicals as they can damage the helmet. Store the helmet in a cool, dry place away from direct sunlight. If the helmet has been in a crash, replace it right away, even if there are no visible signs of damage.