3.3: talking about fibres using the international language: English

Fibers are the smaller part which a fabric is made out. They can be classified in two groups: natural fibers and synthetics fibers.

In the first group we can find: cotton, silk, linen, wool,.. These raw materials come from vegetable world or they are produced by  animals (for examples wool and silk). 

Synthetics are the result of   labs work and they can be designed with all the best characteristics which we want. It can be soft handle as cotton or warm as wool. 

Obviously, there are some differences between natural and synthetic materials. At first the interaction with the body. Natural fibers  make our body feel good, respected in its physiologic functions and there are not adverse reactions. Dressing up with synthetic clothes is the same as wearing plastic. 

But natural raw materials are more expensive than synthetics. 

And so, what is the best?  Can we give a price to health? Do you prefer buy clothes made by natural fabrics or prefer low cost outfit?