Can the foam or padding inside a helmet be refitted?

Yes, the foam or padding inside a helmet can often be refitted, but it depends on the helmet's design and manufacturer. Some helmets are designed with removable and replaceable liners, allowing for easy upgrades or replacements. However, for helmets without this feature or those that are damaged, refitting may not be possible or safe. Always consult the manufacturer's guidelines for proper maintenance and refitting options.