The material is 'synthetic'. [='man-made']
The fibers are 'synthetically' produced.
The fabric is made of 'synthetics'.
(..) I need that as a record. Let's put this back here. There we go. Almost forgot my luggage. Who knows if they got cotton underwear in the future. - I'm allergic to all synthetics. - The future. - That's where you're going. - Right. years. I've always dreamed of seeing (..)1985 Back to the Future