Noun
linothorax (plural linothoraxes)
A kind of upper body armor made of linen used in the ancient Mediterranean world, from the sixth century BCE through at least the second century CE.
In later periods, linen breastplates called linothorax were used, as they were tougher and cheaper to make. Source: Internet
The linothorax was the most popular type armour worn by the hoplites, since it was cost-effective and provided decent protection. Source: Internet