The synthetic fibers have their origin in the oil (petroleum) and their processes pollute the enviroment.
In the other hand, the natural fibers increase the costs of the food and decrease the wildforest parks.
One solution is to recycle the cotton, the plastics and reduce the production of the oil products including the fabrics.
There is a new fabric from Dupont made of corn, also the ancient fabrics like Henequen, papire, linen, organic cotton and rayon (celluloise) are more requested by the Fashion Industry for clothing, home decoration and rugs for cars.
Another benefit is to have a healthy body, because the natural fabrics permits a natural transpiration.