Arnold Rimmer wears various suits during the series. Following his resurrection as a hologram, clothing and hairstyles can be generated by Holly and other unnamed computers for Rimmer to wear ("RD: Future Echoes", "RD: Holoship").
Series I and II
In Series I and II, Rimmer wears a white shirt with beige cargo pants. The outfit contains his name tag simply reading, "Rimmer", his rank of Second Technician accompanied by two check-marks above establishing his second-lowest ranking position aboard the ship, and two Jupiter Mining Corporation logos (one of his left arm, the other on the bottom of his tie). Following his resurrection as a hologram, Rimmer has an "H" placed in the middle of his forehead ("RD: The End").
This is the standard Junior Officer/Technician uniform of the JMC, as all Junior Officers/Technicians aboard Red Dwarf wore prior to the Cadmium II radiation leak (see Jupiter Mining Corporation Uniform).
Rimmer also dons an admiral uniform ("RD: Me²", "RD: Kryten", "RD: Better Than Life"), pajamas ("RD: Me²", "RD: Thanks for the Memory"), workout gear ("RD: Queeg", "RD: Parallel Universe"), and several other outfits throughout the first two series.
Series III, IV, and part of Series V's "The Inquisitor"
In these episodes, Rimmer wears a green military uniform, this uniform marks the first appearance of the left badge which would make reappearances on several later series uniforms worn by Rimmer. This uniform would later be seen worn by fellow Red Dwarf crewman and hologram Sam Murray ("RD: Holoship").
Rimmer also wore a padded coat with a Red Dwarf patch on the left breast ("RD: Marooned"), a tuxedo complete with a matching bicorne ("RD: The Last Day"), an outfit clearly inspired by General George S. Patton ("RD: Meltdown"), and other clothing.
The same as the previous, but red.
Series VI and VII
A padded coat with an altogether more functional appearance than previously seen uniform variations. Conserves the red colour scheme of the previous series until Rimmer becomes a hard light hologram ("RD: Legion") and the coat becomes blue.
Rimmer equips a cowboy ensemble when he becomes Dangerous Dan McGrew ("RD: Gunmen of the Apocalypse"), a hobo disguise ("RD: Tikka to Ride"), the uniform of Ace Rimmer ("RD: Stoke Me a Clipper"), and others.
As explained in a deleted scene ("RD: Back in the Red II"), following several redesigns undertaken by Kryten's nanobots, the standard Red Dwarf uniform was changed with deeper khaki colourants with no colour difference between shirts and trousers, a metallic tie pin of the Red Dwarf logo, and no square ties. Due to this being a new Rimmer recreated by nanobots, he was no longer a hologram and thus lacked the "H".
Following imprisonment in the Tank, Rimmer wears a purple prison uniform as the other boys do ("RD: Back in the Red III"). After Lister enlists Rimmer into the Canaries, Rimmer wears the padded black and yellow jumpsuit while on missions for them, while occasionally wearing a grey jacket over it ("RD: Cassandra", "RD: Krytie TV").
Back to Earth
Same as III, IV and V but in blue accompanied by distinctive light blue boots. The same left badge is brought back from III as well along with a belt wrapped around his waist; his pants bearing a padded texture to them ("Back to Earth").
Series X, XI, and XII
A return to the military uniform introduced in III but in blue, similar to the Back to Earth ensemble but lacking the light blue boots and belt. The left badge has been redesigned and includes Rimmer's name labeled under the badge logo. The pants have also been redesigned, now matching his top in both texture and style.
Rimmer remains hard light for the majority of the series but goes into soft light while on the Erroneous Reasoning Research Academy, where his uniform changes from blue to red until he switches back to hard light where his uniform is blue once more ("RD: Entangled").
Rimmer dons various outfits in these three series such as a return to his admiral uniform ("RD: Officer Rimmer"), a Space Corps uniform ("RD: Trojan"), a blue bathrobe over matching blue clothing ("RD: Samsara", "RD: Krysis"), and other outfits.