Each Legion carried two main standards, one showed a carved or cast portrait of the current emperor to remind the Legionnaires of their loyalty to him.
The other standard emblem was an 'Eagle' made from either silver or gold with thunderbolts held between its claws. This 'Eagle' standard carried by the 'Aquilifer' was the symbol of the entire army.
The soldier carrying the 'Eagle' usually wore a brown bearskin over his armour.