Wear merino, and help it last a long time by not washing it (or washing it gently). If our bodies don't stink (thanks to ammonia-eating bacteria like Nitrosomonas eutropha) we don't need to wash clothing as often, nor do we need to shower. Rolling in dirt like birds and horses is a stretch for most of us, but I think we'll figure out some way.

Seems more likely that vinyl and polyester is from furniture and carpeting and such.