Starfleet uniform (alternate)
Other versions of the Starfleet uniform from various alternate timelines and parallel universes.

Parallel universes
Uniforms from other universes.
See: Starfleet uniform (mirror)

Quantum incursions (2370)

One of the parallel universes experienced by Worf during his quantum incursion had a variant of the 2366 Starfleet uniform. Along with the use of pips on the collar, this version also used gold bars behind a silver Starfleet delta to denote rank. ()

Alternate timelines
Uniform changes resulting from a temporal event.
See: Starfleet uniform (alternate reality)

Earth destruction timeline (2153-2165)

In an alternate timeline where Captain Jonathan Archer was infected with interspatial parasites, Starfleet continued the use of their 2151 uniforms up until 2165. They did not adopt the addition of personnel names and Starfleet membership patches onto the uniform by 2161, as they did in the regular timeline. ()

Federation-Romulan War timeline (late 23rd century)

In this alternate timeline created when Captain Christopher Pike attempted to avoid the accident that would leave him severely disfigured and disabled, the Starfleet uniforms were similar to those worn in the late 23rd century in the prime timeline, but had distinct textured fabric sections with Starfleet delta symbols on the shoulder, similar to the version used in late 2250s. ()

Federation-Klingon War timeline (2344-2366)
In the alternate timeline created by the disappearance of the  in 2344 and the subsequent outbreak of the Second , the Starfleet uniforms were similar to the ones worn in 2366 in the prime timeline, but had enclosed collars and black cuffs. Phasers were worn at all times in silver belts with an offset buckle, in the shape of a gold Starfleet insignia; enlisted crewmembers had one resembling a Sam Browne belt.

Guinan, who recognized that change in the timeline, told Picard that she noticed how "things [..] just don't feel right," before naming that his uniform was among the things that she noted were "somehow [...] all wrong". When Picard disagreed, and stated that "nothing has changed," Guinan reluctantly agreed, but still affirmed, "I also know it's wrong." ()

Subspace inversion timeline (2372 - early 25th century)

In a timeline where Captain Benjamin Sisko was killed on the  during a subspace inversion of the wormhole, and the Dominion War apparently never happened, Starfleet never adopted the 2370s uniform. This timeline did adopt the 2390s uniform seen in other alternate futures. ()

Future timelines
Uniforms from possible futures.

Slipstream crash timeline (2375-2390)

In a 2390 where the  was destroyed, the uniforms had not yet changed from the 2370s version, although they did accept a new combadge. ()

Starfleet uniform (2390s-2420s)
Several alternate future timelines show this uniform to be in service in the mid to late 2390s, with the combadge coming into service in by least 2390. The actual uniform used in the 2390s was different, though it had a similar combadge and rank insignia placement.

Duty uniform
The duty uniform consisted of a division color double-breasted jacket with, like the  worn in the 2230s, black piping running across the yoke, and black pants. Rank was displayed in a series of pips on the upper right breast pocket, just above the piping. (; ; )

Cadet uniform

Cadets wore uniforms similar to the duty uniform, but the jackets were gray, lacking any apparent rank insignia or division colors to indicate their class. ()

Flag officer uniforms

The uniforms worn by flag officers were similar to the standard uniform, though with additional gold trim running down the edge of the jacket over the right breast and on the cuffs. However, the 2369 version was still in use in the "anti-time future". (; )

Appendices

Background information
The Starfleet uniforms worn during  were designed by William Ware Theiss, who returned to design the  uniforms (which were further adapted into future versions on DS9, VOY, and the TNG-era films by Robert Blackman).

External links

de:Sternenflottenuniform (Alternativen)
ru:Униформа в иных реальностях
Starfleet uniform 13