a breastplate is used to protect the internal organs, stomach, and the torso it was also used in the middle ages
A military breastplate was a 'cuirass'
Aegis.
The aegis
no you can not
On average, about 2 - 2.5mm thick. However, the very centreline of the breastplate might be thicker, perhaps 3.5mm thick at most, and the edges of the breastplate at the sides might be as little as 1.0mm thick.
The breastplate of Zeus is called the Aegis. It is often described as a shield or a garment made of goatskin, and is associated with protection and power in Greek mythology.
Breast as in breastplate.
Hephaestus
breastplate of Zues
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Breastplate, helmet and shield.
The Aigis, the head of Medusa.