The material is 'synthetic'. [='man-made']
The fibers are 'synthetically' produced.
The fabric is made of 'synthetics'.
(..) in the sixth week of pregnancy, in tiny quantities. For a baby, it packs the power of an atomic bomb. It's what gives the foetus the necessary energy to form all the bones in its body. I've heard they tried to make a synthetic version of it, didn't realize that they succeeded. If it really is CPH, (..)2014 Lucy