Using the Crest Jr helmet is a breeze. First, adjust the Ergo Fit system with one hand to get a perfect fit on your head. The visor can be left as it is to block sun or rain, depending on the weather. When you're done using it, store it in a cool and dry place. Avoid exposing it to extreme heat or sharp objects. To clean it, use a mild soap and a soft cloth, then let it air dry. Remember to check the helmet regularly for any signs of damage, and if you notice any cracks or significant wear, it's time to get a new one.