Subjunctive mood: "I reckon" at the beginning uses the subjunctive mood, expressing a personal opinion, and increases the linguistic diversity of the answer.
Past participle as an adjective: "wearing the same uniform" where "wearing" as a past participle is used as an adjective, describing "uniform", showing a higher level of grammatical complexity.
Noun phrase: "sense of unity and equal standing" is a compound noun phrase, increasing the density and complexity of the sentence.
Relative clause: "who we are, not what we wear" uses a relative clause for contrast, enhancing the expressiveness and depth of the sentence.