Using your Bell Women's Daily Helmet is easy. First, adjust the Ergo Fit dial to get a snug fit on your head. You can also use the No - Twist Tri - Glides to fine - tune the straps for maximum comfort. When riding at night, turn on the rear LED light by pressing the small button on it. Charge the light via the micro - USB port when the battery is low. As for maintenance, use a mild soap and water to clean the helmet. Don't use harsh chemicals as they might damage the helmet's material. Also, avoid leaving the helmet in direct sunlight for long periods as it could fade the matte cement color. Always store it in a cool, dry place.