Phidias used the theme for the metopes of the east façade of the Parthenon (c. 445 BC) and for the interior of the shield of Athena Parthenos. Phidias' work perhaps marks the beginning of a change in the way the Giants are presented. While previously the Giants had been portrayed as typical hoplite warriors armed with the usual helmets, shields, spears and swords, in the fifth century the Giants begin to be depicted as less handsome in appearance, primitive and wild, clothed in animal skins or naked, often without armor and using boulders as weapons. A series of red-figure pots from c. 400 BC, which may have used Phidas' shield of Athena Parthenos as their model, show the Olympians fighting from above and the Giants fighting with large stones from below.