Using your Leatt 2.5 Moto Full Face Helmet is easy. First, choose the right size from XS to XXL for a snug fit. Put the helmet on your head and adjust the straps so it sits comfortably. When riding, the ventilation channels will keep you cool. After use, remove the washable inner liner and clean it regularly to keep it fresh. Make sure to check the helmet for any signs of damage, like cracks on the shell or loose parts, before each ride. If you're in a crash, replace the helmet right away as it may have internal damage even if there are no visible signs. Store the helmet in a cool, dry place away from direct sunlight to maintain its quality.