Using the Cage Kineticore Full - Face Bike Helmet is simple. Just put it on your head and adjust the straps until it fits snugly but comfortably. Make sure the helmet sits level on your head and covers your forehead. When riding, always wear the helmet properly for full protection. As for maintenance, use a mild soap and water to clean the exterior and interior padding regularly. Don't use harsh chemicals as they might damage the helmet. Check the helmet for any cracks or signs of wear after every ride, especially after a crash. If you notice any damage, it's time to replace the helmet to keep you safe on your next cycling adventure.