Using the Lupo KinetiCore helmet is a breeze. First, put it on your head and use the Lazer TurnSys system. Just turn the dial to adjust the fit until it feels comfortable. You can attach your sunglasses without worry as the recesses in the helmet shape will take the pressure off. If you need more visibility, especially in low - light conditions, attach the Universal Lazer LED to the rear of the helmet using the Direct Mount. When the weather gets cold, add the Winter Kit for the Lazer TurnSys system to keep your head warm. As for maintenance, clean the helmet regularly with a mild soap and water. Avoid using harsh chemicals as they might damage the helmet's materials. Check the straps and the TurnSys system occasionally for any signs of wear and tear. If you notice any issues, stop using the helmet and contact the manufacturer. Also, make sure to store the helmet in a cool, dry place away from direct sunlight to preserve its quality.