Typically made of polycarbonate, carbon fiber, or fiberglass composites, the outer shell is designed to disperse impact forces. These materials combine durability with lightweight properties. Beneath the outer shell is the Expanded Polystyrene (EPS) liner, which acts as a cushion during impacts. This dense foam effectively absorbs shock, protecting the rider's head from direct force. The inner padding, often composed of moisture-wicking fabrics, provides comfort while ensuring a snug fit. Performing maintenance on your motocross helmet is important to its longevity and its ability to keep you safe. Cleaning your helmet is the first step in maintenance, gently wipe the exterior with a mild detergent and water to remove dirt and grime. For the interior, remove padding and liners if possible, and hand wash them using a gentle fabric cleaner. Allow them to air dry completely before reassembling. Refrain from using petroleum-based cleaning agents or solvents, as these can degrade the helmet materials, compromising safety. Always store your helmet in a cool, dry place, away from direct sunlight. Using a helmet bag is a good accessory. Regularly inspect the helmet for cracks, dents, or any signs of wear. The EPS liner, in particular, can degrade over time, so it's essential to replace the helmet if it's been through a significant impact, even if no visible damage is apparent. Keep track of your helmet's lifespan, even given impeccable care, helmets should be replaced every 3-5 years to ensure optimal protection.