Chain mail was a form of metal "cloth" made by hooking small,
round, metal links together. Iron workers formed long, thin
strips of metal that are then cut into shorter lengths that
could be forned into the links. These were then knitted together
as one would string paperclips together and arranged into the
shape of the desired garment. Chain mail was relatively light,
very flexible and, of course, "breathed" (let the sweat and body
heat out). Introduced in ancient times, for over a thousand
years chain mail served principally to make hauberks (a long
sleeve, knee length shirt weighing 20-30 pounds.) After 1000 AD,
chain mail hoods and leggings became popular, adding another
10-15 pounds of weight. Chain mail was always worn over heavy
wool clothing that served to cushion blows, while the chain mail
prevented swords and axes from penetrating. In the mid 14th
century.chain mail was gradually replaced by plate mail .