i suggested you contact daas torah directly in one of these communities, if you have any doubts. you will find what i related to be correct.
heavyweight (stonewash) denim, which is a course denim with a faded pale blue appearance, that looks even worse in the hem and seam areas, is unfit for the clothes of men and all the more for the clothes of women and girls. (in some specially refined circles, women and girls do not wear any type of denim, although it is hard-wearing and practical, because it is related by name and basic appearance to the rough types of denim which stand for uncivilized and outlandish styles of life. they do not wear denim skirts even when the skirts are quite different from those worn by the lower classes, being dark colored rather than a light faded blue, and sewn with unobtrusive stitches instead of the usual prominent and coarse stitches.)
the Ben Ish Chai writes in his Sefer (and this is a constant theme in the various meforshim):
“True a woman may wear garments that suit her well and enhance her appearance. She must, however, not wear a garment that local Jewish women feel should not be worn.”