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Insignia

The Foundation uniform is notable for having an insignia that serves as a telltale sign that the person is from the Foundation. Every official is required to wear one and it has to be visible. However, there is no say on how it can be worn for certain people.

The insignia itself is a golden emblem, with its centerpiece being an angel with its arms held out. Variations of this insignia are found everywhere, including brooches, medals, buttons, and pins.

In SPDM, once a student has reached Academic Year 6 (10-11), they will receive their own insignias, which are worn around the neck. Interestingly, they wear a cloth around the middle of the emblem. covering the head/torso area of the centerpiece. This can symbolize that the student is still training to serve for peace and humanity.

It's only when they graduate that the cloth is abandoned, which then symbolizes that they're ready for the world that they're tasked to serve for.

Such a custom is also applied to students in the School of Discipline, I think. Since Jessica wears the insignia in her graduation uniform. But because she's in Vertin's team, this requisite is excused.

(look at her, she's so <3)

Anyway, speaking of Vertin, she—alongside other arcanists in her team—are not required to wear the insignia. Why? This can be because of Vertin's status as the timekeeper. As the timekeeper, she's required to be outside a lot, and to only observe and document with no growing suspicion.

This can mean that she has to be undercover in some tasks, resulting in her not wearing the insignia on her uniform. And because the arcanists under her wing are not taking direct orders from the Foundation, they are not required to wear them as well. In a storytelling perspective, this might be for creating a distinction between Vertin's team and the Foundation; that Vertin and the suitcase arcanists are not completely on their side.

The only other exceptions to this rule is Tooth Fairy and Mesmer Jr. Tooth Fairy only works part-time as the school physician, while Mesmer currently works at Laplace, which does not make wearing the emblem a requirement.

Now that this is out of the way, I will go into the uniforms.

Main Elements

The main elements in the Foundation uniforms are that they follow a monotone color pattern (black, grey, white) while having a checkered diamond pattern. The standout colors are gold, purple/violet, blue, and occasionally the afflatus colors. (I'll show why later down)

There are also some occasional gold patterns found on the uniforms like the crowns on collars and stars on the grey sleeves.

The reason we find checkered patterns everywhere is because it symbolizes the duality of existence, balance of two sides (good and evil or light and dark). The Foundation prides itself of being the beacon of balance between humans and arcanists. Clearly, it's not like that and there is an imbalance at play.

Update: Upon further research, I found that the crossed laces are found to be also a symbol. Based on Ms. Moissan's "Foundation Heeled" boots, the crossed laces symbolize obedience.

Uniforms - SPDM

There are two variations of the SPDM Uniform that we see in game. One is where Vertin and Sonetto were around 8-9, and the next is seen throughout the rest of Chapter 3.

Students are required to wear fully white uniforms, but they vary between the stages that they are in. In early stage, they wear a collared shirt or dress with a hint of gold underneath the collar. Meanwhile, for late stage/work immersion students, they wear a long-sleeved shirt under a tunic, alongside their covered insignias.  The boys are wearing shorts while the girls are wearing a skirt or a dress altogether.

When its winter, they wear black cloaks with the hood being in its checkered pattern inside. It's held together by the insignia as well.

The students have a bit of freedom when it comes to their hair as well as (in very restricted fashion) the accessories that they wear. Sonetto and Mesmer wear a headband (which was carried after graduation), The Ring wears a giant bangle around his head and a chain of rings on his belt, Isabella wears two brown clips on her hair as well as a checkered scrunchie around her wrist.

Otherwise, this is the standard uniform that's expected to be worn with modesty and cleanliness.

For the Instructors, they're expected to wear a brown coat with the insignia. Meanwhile, for monitor assistants, they wear a grey uniform with hints of red. The insignia is worn as a badge with two red tags on it.

Foundation Guards

Guards wear varying uniforms that would tend to go by functionality and tactical-ness, and the main colors tend to go with the usual color palette alongside the insignia and colors that match an afflatus. Some wear jackets, and some wear capes depending on rank. There are also patrol defenders, security guards (SPDM), and general officers who all wear additional headgear.

In 4-21 (Good Weather), the Guard Leader boss is wearing an additional suit with equipment coming from Laplace. It continues to serve the point of the practicality needed for all situations.

Investigators

Investigators from the Foundation wear a grey and white uniform that covers most of their body, and wearing a headdress that obscures the entirety of their head. The headdress of female investigators would have an additional veil at the back of their heads, while the male investigators wear a cape. The insignia is also worn around the neck.

The only person that has a variation of this uniform is Sonetto. Since she is a squad leader and thus higher ranked, she has a bit of liberty in modifications to the uniform. So with it, she abandons the headdress and wears a cape that's adorned with her merit medals. She also wears a few accessories. Truly one of the best of the best.

Foundation Staff

The Foundation staff in headquarters and the offices wear varying uniforms, especially the politicians. But we can start off with the normal staff.

The normal staff wear a standard office suit, with either a jacket or a coat to compliment it. They also wear headgear that is smaller in size compared to ones worn by investigators. The checkered pattern is more prominent, found in ties or garments worn over the dress shirt.

(These two are investigators named Adolf and Angie, I'd see them having lunch together as friends :) )

Horropedia, also being higher ranked and coming from a different investigative unit, wears a variation of this uniform. The cuffs are checkered and he wears a light grey vest. Additionally, a green clip is donned on his tie. While semi-compliant, Horropedia stands out for his wits and his eccentric-ness with his love for horror. He prides himself on his knowledge and wants to show that now that he has a taste of the little freedom he has now.

Meanwhile, as the Timekeeper, Vertin wears a different outfit entirely. She wears a suit with a color palette of indigo, purple, cyan, and black; Complimented with a cravat with an indigo gem, and a purple top hat with a cyan ribbon. On the cuff of her right forearm, there is a nixie tube watch timer that helps her foretell the storm's countdown easier. Once again, this creates her distinction from the rest of the Foundation. Indigo amongst black and white. And Indigo conveys integrity and deep sincerity. - Empowered by Color (the text is linked!)

(bonus vernetto crumbs for the gays)

Government Officials

Now, for the politicians in the Foundation. The politicians wear varying uniforms, but they are meant to be relatively the same as any other professional suit. Most of them wear coats and/or vests that are in the same monotone colors. Many wear the insignia on the left side of their chest, with the exception of Constantine and Madam Z, who wear it in the middle.

The politicians can wear formal suits for debates just like with the one between Delegate Mark Hal and Committee Member Pedra Rosa. Mark had a green and orange color palette for his formal suit, which made him stand out quite a bit. Meanwhile, Pedra wore standard blues and greys.

Now, the people that stand out to me personally are Madam Z, Constantine, Pedra, and Bernard. The reason for this is how distinct Z and Constantine's uniforms are, while Pedra and Bernard have colors that stand out amongst the monotone colors.

Madam Z wears a collared dress with a style similar to the one that the female investigators wear. She has a grey and white coat and its sleeves are pushed up by black gloves. The insignia is found to be worn as a centerpiece for a tie. She looks like she could be an investigator herself, really. As if she were one with her colleagues of lower rankings for that matter.

Constantine wears a suit with ridiculously large collar and odd-looking sleeves. Donning a grey vest and wearing the insignia as some kind of necklace. There are also a garments worn under the suit, showing the checkered pattern once again, and the diamond accessories. This really makes the distinction of her being the Vice President, no?

For Pedra and Bernard's case, they're the only people that we know so far that integrate the navy blue in their outfits. I can see it representing their power as humans, in a way. It evokes the conservative and authoritative traits that they have across the Foundation and the world by extension.