Crewman

Ensign

Lieutenant Junior Grade

Lieutenant

Lieutenant Commander

Commander

Crewman

Chief Petty Officer

Cadet

Ensign

Lieutenant Junior Grade

Lieutenant

Lieutenant Commander

Commander

Captain

Commodore

Rear Admiral

Vice Admiral

Admiral

Fleet Admiral

Command

Operations

Sciences

In 2373, Starfleet had introduced a new standard duty uniform. It was a two-piece uniform, almost all-black. The jacket had quilted gray shoulders with the wearer's division indicated by a colored sleeve stripe near the cuff. The under-shirt was also colored to denote the division, the collar of which protruded from the neck of the jacket and held the rank insignia. The combadge was worn on the left breast.

By 2380, a succession of other Starfleet uniforms and a new combadge were also phased into service during this time and used concurrently.

Starfleet had a uniform variant available to commanding officers in service aboard starships. It was a black vest which had a gray quilted yoke that extended below the combadge. It was sleeveless and had a low-necked line. It was worn over the standard undershirt.

Another variant was available by 2381. It looked almost identical to the Duty uniform, however it featured a black strip with division-colored piping below the gray shoulder area. It also had a thick quilted gray strip that ended in a point half way down the center of the uniform jacket.

Some time around 2372, a corresponding alteration was made to the uniform worn at Starfleet Academy and by Starfleet cadets serving aboard starships.

While essentially the same design as the preceding style gray jumpsuit with division-colored shoulders quilting was again added to the yoke as were cuffs bearing division colors. Instead of being a one-piece uniform, however, it was split, now sporting a gray mock turtleneck beneath.

As with the earlier style, the uniform was gray (rather than black worn by officers) and featured pockets running down the trousers.

First appearing in 2374, Starfleet issued a new uniform for flag officers, such as admirals, reflecting the new duty uniform.

Retaining the same basic form as the previous style, the next generation of flag officer service uniform incorporated the adjusted color scheme and quilted yoke. The jacket was longer and edged in gold, and the tunic displayed rank insignia on both sides of the collar. The cuffs were wider than present on the standard uniform, displaying admiral's rank insignia on both sleeves. A belt was also introduced to the uniform, with either a plain gold rectangular buckle or an oval buckle displaying the Seal of the United Federation of Planets.

Starfleet personnel were issued a standard dress uniform for diplomatic events.

It consisted of a white, short jacket with gold trim and a quilted gray center section, worn over black trousers, which were also trimmed in gold. The division colors were displayed as piping around the collar, and wide bands on the cuffs and side seams of the trousers.

Captains and flag officers wore white in place of blue-gray in the center section.

For situations that called for a Starfleet officer to serve in hazardous battle operations, a ground combat Uniform was available by 2373. Made of a harder, more durable substance than standard uniforms, the combat uniform consisted of a black, textured material with a thick line of division color running across the yoke. A black turtleneck was worn beneath the body armor.

Starfleet scientists had the option to wear a lab coat over their duty uniforms.

As with the previous generations of Starfleet uniforms, a plain, operations mustard-colored jumpsuit used by technicians and utility workers was available as late as 2379.

For harsh or desert conditions, excursion Uniforms were worn to protect against sunlight and provide comfort in hot and humid conditions. Consisting of off-white-colored robes and hoods, pants and short-sleeve shirts, trimmed with division colors, this particular uniform served when the standard duty uniform may have proved uncomfortable or inappropriate for some environments.

Specialized boots were also part of the desert uniform, also off-white, with treads better suited to mountainous or more rugged terrain.

Starfleet offered cold gear for icy conditions. It was a survival suit, which consisted of a combination of a silver-metallic jacket with pants, gloves, boots, and goggles. The gloves were padded to keep out the cold, while the boots had ridges on the bottom for extra grip and closed with some form of quick fasteners.

Environmental suits were used for protection or life support in inhospitable environments. They were a white tight-fitting suit with a helmet and gloves. The life support unit consisted of a hard upper-torso body-shell, which was different for men and women.

This unit contained the essentials for survival: communication equipment, oxygen, EV controls, power supply, and again an extra oxygen hose that made it possible to share oxygen. Alerts were available visibly via the color-coded EV controls and also by audio. Under normal conditions, an EV suit would provide approximately twenty-four hours of oxygen.