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, and
mining.
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.
See also:
For information about the band Helmet, see here