Starfleet uniform ( late 2360s - early 2370s ) In the late 2360s , the Starfleet uniform was changed from the previous design , mainly switching the division color to the shoulders . ( ) The next major redesign occurred in 2373 . However , this uniform continued to be used on the and on the until the USS " Voyager " ' s return from being trapped in the Delta Quadrant in 2378 . ( ; ; , et al . ) Starfleet uniforms were composed of synthetic polymers , and were replicated . ( ) Standard duty uniform . By the year 2369 , Starfleet had introduced a new standard duty uniform , a less formal uniform than the previous version which reversed the familiar two - tone arrangement of black over department colors from the previous uniform style . The combadge was updated around this time with the new Starfleet insignia , although some flag officer uniforms still used the previous design . The new uniform was a loose - fitting , two - piece black jumpsuit with division color on the shoulders , usually worn with an open collar over a blue - gray mock - turtleneck shirt . Under the uniform jacket and shirt was an undershirt with the same bluish violet - gray of the mock turtleneck . Comparable to a utility jumpsuit , the uniform was first used aboard space station s before eventually coming into service aboard starships in 2371 , beginning with the , , USS " Voyager " , and the USS " Equinox " . Despite being worn in conjunction with the more formal duty uniform , the new variant eventually came into exclusive use aboard starships before its retirement in 2373 . ( ; ; ) Engineer ' s overcoat . B ' Elanna Torres wore a functional overcoat over her traditional uniform . It mirrored the uniform design , with gold shoulder coloring . As well as adding an additional layer for protection , it provided small pockets for tools . ( VOY Season 4 ) Maternity uniform . Maternity versions of the uniforms were also available , consisting of a uniform top that , instead of being tucked in as on the standard uniform , flared out below the waist . ( ) Uniform undershirt . This uniform was worn with two layers of shirts under the uniform jacket . The first layer was the long sleeve blue - gray color mock - turtleneck upon which the wearer ' s rank insignia was worn . This shirt was visible when the jacket was worn , and beneath this was either a female or male undershirt of the same blue - gray color . There were two versions of undershirts available . A sleeveless undershirt that was tucked into the uniform pants just below the breast , but lower than the previous undershirt . This undershirt also had a lower neckline with less material used on the shoulders when compared to the previous version . ( ) A short sleeved tee was also used , tucked into the pants at the waistline . This style was worn by both sexes . ( ) Flag officer uniform . The last version of the flag officer uniform from the previous style was retained while these uniforms were in use . These uniforms were retired in 2374 for the next design . ( ; ) Dress uniform . The dress uniform style from the previous uniform was retained while this uniform was in use . This uniform style was used by Starfleet until its retirement in 2374 , though officers aboard the used it ( though sparingly ) throughout their mission in the Delta Quadrant . ( ; ) Combat jacket . For situations that called for a Starfleet officer to serve in hazardous battle operations , a ground combat jacket was available by 2373 . Made of a harder , more durable substance than standard uniforms , the combat jacket was worn like body armor over the standard duty uniform . Consisting of a black , textured material , the uniform ' s only distinguishing feature was a thick line of division color running across the yoke . ( ) Excursion uniform . Available to officers serving aboard starships as early as 2371 , gray jumpsuits were worn during certain away mission s if conditions warranted . In 2373 , officers from the starship " Voyager " wore these gray uniforms on a rock climbing excursion on an alien planet . Marked by a stripe of division color across the chest , these jumpsuits were tight - fitting and trimmed in a metallic - silver material . Allowing for more taxing physical activity , these uniforms were worn with specialized boots with treads better suited to mountainous or more rugged terrain . ( ) Uniforms similar to these were worn beneath environmental suit s . ( ) Training uniform . Similar in make to the excursion - type uniforms in use aboard starships in the 2370s , the training uniform was a gray , short - sleeved jumpsuit worn with specialized boots bearing enhanced treads . The uniform style lacked any rank insignia , noticeably in the collar area as the jumpsuit had an open neck . Female styles had a lower , but narrower open neck than their male counterparts . These uniforms were used in situations in which increased physical activity warranted something less confining and more flexible than the standard duty uniform . Marked by a strip of division color running across the chest and down the sleeves , these uniforms had low collars and were tight - fitting . ( ) Flight suit . During their participation in the Antarian Trans - stellar Rally in 2377 , USS " Voyager " officers Tom Paris , B ' Elanna Torres , and Harry Kim donned special flight suit s . Consisting of sleek , tight - fitting jumpsuits , the flight suits were black and gray with stark white shoulders and red trim . The uniforms featured high collars and distinctive closures running down the front . ( ) Medical attire . Scrubs . During surgical sessions , scrubs were provided to doctors in a blue - gray in color . These scrubs were worn by medical personnel in battlefield hospitals . ( ) Patient attire . Patient s wore a plain blue garment while receiving care in battlefield hospitals . ( ) Cadet uniform . By the early - 2370s , the Starfleet cadet uniform was modified to keep it distinct from the standard duty uniform . Retaining the same basic shape and style of the previous design , the new uniform was now gray instead of black with division color shoulders . With this modification , all visible rank insignia was also removed . While this uniform saw use through 2374 , a new cadet uniform was introduced to some cadets as early as 2372 . ( ) Other features . Depending on their various circumstances and traditions , some Starfleet officers were allowed to augment their uniforms with the addition of cultural items . Klingon Starfleet officer Worf wore a baldric displaying various family emblems throughout his tenure in Starfleet . ( ) Ferengi cadet Nog wore a headdress traditional among his people . ( ) Scientist s sometimes also adorned their Starfleet uniforms differently than other officers , wearing lab coat s over their standard uniforms . ( ) Rank insignia . Insignia contained a microscopic identification code , which included the ship name . ( ) Appendices . Background information . The Starfleet uniforms introduced in the 2360s and ' 70s were designed by TNG , DS9 , and VOY veteran costume designer Robert Blackman , based upon William Ware Theiss ' designs from " " and . The Starfleet uniforms designed by Robert Blackman for " Star Trek : Deep Space Nine " was intended to set the look of the new show apart from " The Next Generation " and set a different tone . The uniforms , with their rolled up sleeves , seemed to indicate that the alien station on which the show was set was far from the sleek and clean . Blackman commented : " The thing that interests me is the reversal on " The Next Generation " . Starfleet uniforms have a very dignified and ennobling kind of appearance with that very vertical , perfectly done , military - esque kind of structure . In " Deep Space Nine " , we ' ve taken it in another direction . It ' s very utilitarian . It ' s a cross between a NASA jumpsuit and a mechanics jumpsuit . They ' re very loose fitting and they have those t - shirts , and some people roll up their sleeves so they look like men at work . I like the notion of a kind of looser and more accessible design . There ' s something about the dignity that was just so wonderful in " The Next Generation " , but it ' s a little bit standoffish . There ' s a kind of propriety about it , and now we ' ve got these guys who kind of open their jackets and their shirts and push their sleeves up and get down to it . It ' s a very hands - on existence . It ' s fascinating to me " " . ( " Captains ' Logs Supplemental - The Unauthorized Guide to the New Trek Voyages " , p 131 ) It is notable that this variant ' s science uniforms , although referred to as blue ( such as in ) are visibly closer to green . While had been designed for the feature " Star Trek : Generations " , a last minute decision abandoned them in favor of using a mix of TNG and DS9 / VOY - style costumes . In the film , many " Enterprise " - D crewmembers started off in the TNG uniform , then switched to the DS9 / VOY uniform at random points during the film . Reportedly , time was so short that actors Patrick Stewart , Jonathan Frakes , Brent Spiner and LeVar Burton had to " borrow " uniforms made for DS9 stars Avery Brooks and Colm Meaney and VOY stars Robert Duncan McNeill and Garrett Wang , respectively . " Generations " was the only example of the two uniforms being worn alongside one another by any crew , DS9 producers generally using the TNG - style uniforms to indicate that the wearer served on a starship or , as in the episodes and , at Starfleet Command . One of the few variants of the uniform also appeared in " Generations " , Captain Picard wearing the standard jumpsuit - style version , with a black , barely visible , belt buckle . The uniform went on to be the uniform of choice on " Voyager " , where it remained even after the crew made contact with Earth in mid - season 4 and became aware of the " First Contact " redesign . Variants of this uniform style were seen in ( copied by con artist s ) and , in the holoprogram The " Voyager " Encounter . This uniform style is also seen in more episodes than any other uniform style , being featured in the first four - and - a - half seasons of DS9 and during " Voyager " s entire run ( adding up to eleven and a half seasons worth of episodes ) as well as an episode of TNG and one film .