Below are some detailed photos of a screen used Command tunic from the 1st season of Star Trek: The Original Series. This costume was constructed from a gold velour fabric which had a tendency to shrink, sometimes considerably, during cleaning - and this behavior eventually prompted the wardrobe department to switch to a more stable nylon diamond weave double knit fabric for the creation of the 3rd season Starfleet tunics and dresses. In the last 3 photos a bolt of Phase II square weave command fabric, which perfectly matches the lime green color of TOS 3rd season command fabric, is shown side-by-side with the gold velour, for color comparison purposes.
Many thanks to long time Star Trek fan and collector Paul in France for his kind permission to display these photos.