Using this helmet is easy. First, adjust the 360 - degree head belt vertically to fit your head size. Then, use the Safe - T Heta fit system to make sure it's a perfect fit. When you want to put on or take off the helmet, use the Fidlock magnetic buckle with one hand. You can adjust the visor according to your needs and dock your sunglasses in the front vents. As for maintenance, clean the helmet regularly with a mild soap and water. Don't use harsh chemicals as they might damage the helmet. Check the helmet for any signs of damage after a big impact, and if there's any, it's best to replace it. Also, store the helmet in a cool, dry place when not in use.