UNSC Navy working uniform

Working uniforms are part of a uniform (much like fatigues) worn by military personnel in non-combat situations, such as the crew-members aboard the and. They provide little to no protection, only offering a covering specifically for their jobs and tasks at hand, such as bridge crews, engineering and tech support on ships or ground-side.

Gray service coveralls are the basic uniform worn by UNSC Naval personnel while on duty. These uniforms offer only a little protection. For specialized personnel, they come in a variety of colors such as blue, red, orange, purple, and yellow. The colors often differ depending on the wearer's job.

Trivia
The color-coded working uniforms seen in Halo: Combat Evolved and Halo 3 are almost identical to those worn by BOBs in the Marathon trilogy. However, in Halo: Combat Evolved Anniversary, all Navy personnel aboard the wear gray two-piece uniforms which resemble those seen in Halo Wars, Halo: Reach, Halo Legends, and other more recent media.

List of appearances

 * Halo: Combat Evolved
 * Halo: The Flood
 * Halo: First Strike
 * Halo 2
 * Halo: Contact Harvest
 * Halo 3