Those look like accordion pleats
, actually. What sort of a polyester knit is it? Twills, canvas, suiting fabrics, etc. are usually pretty good at holding a pleat.
"And we are all told from the moment we open our eyes, that everyone is entitled to his or her opinion. Well, thatís horsepuckey, of course. We are not entitled to our opinions; we are entitled to our informed opinions. Without research, without background, without understanding, itís nothing. Itís just bibble-babble. Itís like a fart in a wind tunnel, folks." --Harlan Ellison