What does it generally mean if your helmet fits too loosely?

If a helmet fits too loosely, it generally indicates that it may be in the wrong size category. A helmet that is not the correct size for the wearer may not provide the intended level of protection in the event of an impact. Proper fit is crucial for helmets, as a loose fit can allow for movement during use, increasing the risk of injury. Safety standards are set for helmet sizing, and helmets are designed to stay in place while still being comfortable when fitted according to the manufacturer's guidelines. A helmet that fits correctly should feel snug but not overly tight, ensuring that it serves its purpose effectively.