A helmet is a form of protective clothing worn on the head and usually made of metal or some other hard substance. Helmets are common in the military, construction, mining and some sports, including American football and rock climbing. Motorcycle helmets and bicycle helmets are compulsory headgear in some jurisdictions, in the United Kingdom only Sikhs are allowed not to wear motorcycle helmets.

Goggles are another form of protective headgear. They are not needed if a helmet is worn of a type that protects the eyes as well.

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For information about the band Helmet, see here