Star-Lord's Helmet

Star-Lord's Helmet is an expanding partial helmet worn by Star-Lord himself.

Capabilities
This helmet utilizes a wide array of capabilities. The ones that were exhibited by Star-Lord include:
 * Size-Altering: The helmet can be shrunk down into a earpiece that is on the back of the user's right ear.
 * Oxygen Purification: The helmet protects the wearer from toxic atmosphere.
 * Back-Up Air Supply: The helmet provides oxygen for the wearer in the vacuum of space.
 * Pressure Support: The helmet protects the wearer's face from sudden changes in air pressure.
 * Head-Up Display: The helmet can foreshadow an enemy's attack.