Basically, 300 King Leonidas Helmet belongs to Leonidas I , who was the King of the Greek City of Sparta. And the 17th generation of the Agiad, a family that claimed descent from Heracles and Cadmus, the mystical demigod.
Leonidas had a notable role in the Second Persian War, where at the Battle of Thermopylae (480 BC) he led the allied Greek forces to a final stand while attempting to protect the passage from the invading Persian army. That ancient synthetic black horsehair plume helmet. It is made of mild steel 18 gauge and Antique Brass. It comes with a lining and a strap inside. Its inner circumference is 72 cm, 21 cm from ear to ear and 33.5 cm from front to back. It’s a portable full-size helmet.