We have fibres, namely synthetic and natural. When talking about the synthetic fibres, we see that they are very different in properties from each other. For instance, Rayon is a synthetic fibre but it is very different from other synthetic fibres. How?
It is made from a natural source.
Rayon has properties similar to that of a silk, but is obtained by the chemical treatment of wood pulp. It is a manmade fibre but obtained from a natural source. So we see that it gives the look of a natural fibre but it is a synthetic fibre.