Using your Speedframe Pro Helmet is a breeze. First, adjust the 360° Fit System to get a perfect fit on your head. Make sure it's snug but not too tight. Then, adjust the multi - position visor according to the sunlight and your riding position. Use the FIDLOCK SNAP buckle to fasten the helmet securely under your chin. When it comes to maintenance, clean the XT2 antimicrobial comfort liner regularly. You can hand - wash it with mild soap and let it air dry. For the outer shell, wipe it with a damp cloth. Always store your helmet in a cool, dry place away from direct sunlight. And remember, if you've been in an accident, replace the helmet even if there are no visible damages as the internal structure might be compromised.