Using the Giro Fixture MIPS II Helmet is easy. Just put it on your head and adjust the Roc Loc® Sport fit system to get a comfortable and secure fit. When you're out riding, this helmet's quick - dry padding will keep you dry and comfortable, and the reflective rear decals will make you more visible in low - light conditions. As for maintenance, use a mild soap and water to clean the helmet regularly. Avoid using harsh chemicals as they may damage the helmet's structure. Also, check the helmet for any signs of damage before each ride. If you notice any cracks or significant wear, it's time to replace the helmet. This way, you can ensure that your helmet continues to provide the best protection and performance.