Uniforms

Starfleet uniforms were uniforms worn by individuals serving in the Federation Starfleet, originally a United Earth organization. These uniforms facilitated the wearers' needs as both scientists and researchers, as well as Starfleet's military role. Wearers were expected to abide by the Starfleet dress code, though special exceptions were sometimes made for certain aspects of an individual's cultural heritage, such as Worf's Klingon baldric and Nog's Ferengi headdress as well as Ro Laren's (and briefly Kira Nerys') earrings. Source: Memory Alpha

These were the Starfleet Uniforms as of 2381 in Star Trek: Theurgy.