Helmet - Helmets Definition: Definitions for theClothing & Textile Industry
Helmets are among the most ancient forms of protection, and are known to have been worn by ancient Greeks and throughout the Middle Ages; at this time they were primarily military equipment, protecting the head from cutting blows with swords and flying arrows. They were initially constructed from leather, but eventually came to be made entirely from iron, with a variety of functional enhancements. Military use of helmets declined as firearms became widespread, where traditional helmets offered little protection. However, with the increasing use of heavy artillery, the steel helmet made a comeback in the 20th Century as protection for the head from shrapnel.
Goggles are another form of protective headgear. They are not typically needed while wearing a helmet that protects the eyes as well. Hard hats are typically preferred in modern times for construction workers.See also:
PASGT "Fritz" helmet
Pith helmet (a.k.a. sun helmet)
Leather helmet - leather