Disclosed is a helmet or a safety cap for protecting the rider's head and a
method of manufacturing the same, in which the main body of the helmet has
a dual-structure so as to reduce work process when an outer surface of the
helmet is painted, and weight thereof. The main body of the helmet has a
dual-structure in that an outer surface thereof is formed of a
thermoplastic for an aesthetic enhancement and an inner surface thereof is
formed of FRP or a mixture of aramide fiber, polyethylene fiber, vinylon,
carbon fiber. Thus-formed dual structure of the helmet body contributes to
enhancement in impact resistance and convenience in painting, decreasing
an overall weight of the helmet.