The pilots served piloting the various TIE series starfighters in the Imperial Nacy. At the height of the Galactic Empire, the Imperial Navy had countless Academy graduates and clones at its disposal.
They were referred as "Bucketheads" by Rebel pilots, due to their bulky, fully enclosed helmets.
TIE pilots were equipped with black jumpsuit, a black helmet, and a life support chest piece with breather tubes to provide necessary gases.
The helmet design was reminiscent of stormtrooper armor, with a few notable distinctions. Additional modifications enabled the pilot to survive in the cockpit's vacuum. Breather tubes extended from the helmet to the front of the chest plate, where controls for the suit's portable life support system were located. The actual supply of oxygen was built into the rectangular back plate of the armor.