I'm going mention that you might also consider Amerikilts. They had some black poly-blend kilts at the last several festivals that would certainly resist wrinkling and would dress up well. They do kilts in several shades of green and khaki cotton but the material weight and resistance to wrinkling seems to vary quite a bit from stiff to buttery soft depending on color selected. My cotton AK in putty color wrinkles a little but I have seen some Amerikilts (and Utilikilts for that matter) that are so stiff the pleats stand straight out when the wearer moves from sitting to standing. My micro-suede AK doesn't wrinkle at all.