Analysis, part 2 - Topstitching

Another unique characteristic of the uniforms from this era was the topstitching. 

Just as the jumpsuits and jackets had a row of topstitching ⅛" away from the shoulder seams on each side that ran the full length of the seam (except the neckline and armscye trims), so the vest had ⅛" parallel topstitching on each side of the shoulder seam (not extending onto the neckline and armhole trims).

First Contact

DS9, 5x22 "Children of Time"

Here, you can see the shoulder topstitching on both the vest and the jacket in the same shot:

DS9, 6x18 "Inquisition"

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