Using the Bell 4Forty Air MIPS Helmet is easy. First, adjust the Float Fit™ system to get a snug and comfortable fit on your head. You can also adjust the 3 - position visor according to your needs, like blocking the sun or fitting your goggles. When riding, the helmet's features like the Sweat Guide™ and Ionic+™ padding will keep you comfortable. For the Fidlock® magnetic buckle, just bring the two parts close to each other and they'll snap together. When it comes to maintenance, clean the helmet regularly with a mild soap and water. Don't use harsh chemicals as they may damage the shell or padding. Also, store the helmet in a cool, dry place. Remember, this helmet is designed for riders 5 and older, so make sure it's used by the appropriate age group. And always check for any signs of damage before each ride.