Aesthetic and function in the kohen gadols wardrobe
The following is an observation about how the kohen gadol's outfit fundamentally differs from the basic four items of clothing worn by regular kohanim as well and is specially tailored (pun alert!) for his exclusive service The additional items worn by the kohen gadol over those worn by a regular kohen are the ephod, choshen, me'il and the tzitz. Aside from the sartorial upgrade in terms of materials used (multi-colored wool, gold and linen vs linen only) they also provided other services unrelated to clothing per se which were specific to the kohen gadols unique avodah "לפני ה". All from shemos 28: verses 12, 29-30, 35 and 38 respectively Ephod: וְשַׂמְתָּ֞ אֶת־שְׁתֵּ֣י הָאֲבָנִ֗ים עַ֚ל כִּתְפֹ֣ת הָֽאֵפֹ֔ד אַבְנֵ֥י זִכָּרֹ֖ן לִבְנֵ֣י יִשְׂרָאֵ֑ל וְנָשָׂא֩ אַהֲרֹ֨ן אֶת־שְׁמוֹתָ֜ם לִפְנֵ֧י יְהֹוָ֛ה עַל־שְׁתֵּ֥י כְתֵפָ֖יו לְזִכָּרֹֽן׃ Choshen: וְנָשָׂ֣א אַ֠הֲרֹ֠ן אֶת־שְׁמ֨וֹת בְּנֵֽי־יִשְׂרָאֵ֜ל בְּחֹ֧שֶׁן הַמִּשְׁפָּ֛ט עַל־לִבּ֖וֹ בְּבֹא֣וֹ אֶל־הַקֹּ֑דֶשׁ לְזִכָּרֹ֥ן