: The shoulders feature a black, textured, or quilted material that provides a slightly more "armored" or tactical look compared to the flat fabrics of the TNG era.
The 2401 design is a evolution of the "First Contact" era and the 2399 uniforms, focusing on a more professional and structured appearance: Starfleet 2401 uniform
A comparison of how these differ from the . : The shoulders feature a black, textured, or