Most of the natural fibre that is cotton silk, rayon comes from the plant. These are grown specially and then the entire crop is harvested to form natural fibres. This results in a decline of the forest. As we are using these forest materials these natural fibres to manufacturer the garment. With the increase in technology and new techniques synthetic fibres are being produced along with natural fibres that have reduced the cutting of the forest and thus help the environment. So the synthetic fibres such as polyester, nylon etc have more tensile strength and are more durable and are way more environmentally friendly as they are not produced from the plants.