The chain mail made of iron rings called "lorica hamata" spread like armor to protect the body of the legion in the first century BC, especially after the army reform implemented by Gaius Marius in fact, who introduced conscription.
Before then, the "lorica hamata" was worn only by soldiers wealthy, definitely adopted after contact with the Celts, teachers in the creation of weapons and armor made of iron.
Made of twisted iron rings and edges finished in leather.
Weight about 8 kg. wearable