In most cases they are stronger than artificial fibers, and they don't include any harmful additions.
Plant fibers and animal fibers.
The plant
it breaks down the cellulose in the wood and plant fibers; it eats the wood and plant fibers
Cotton fibers come from the seedpods of the cotton plant, which contain the fluffy white fibers that are harvested and spun into yarn or thread for making textiles. The fibers are composed mostly of cellulose and are known for their softness, breathability, and absorbent qualities.
It is important to know how natural fibers are classified. Natural fibers are fibers from plant, animal and minerals. They are classified according to their origin.
They are called Fibers
Leaf sheath encircling the stem of banana plant is used for making fibers.
Natural fibers come from plant, animal and mineral sources. For example cotton fiber comes from the cotton plant / boll. Linen from the flax plant.
Linen is obtained from the fibers of the flax plant. The plant is harvested, dried, and then the fibers are extracted through a process called retting. The fibers are then spun into yarn and woven into fabric.
In most cases they are stronger than artificial fibers, and they don't include any harmful additions.
the advante is it stretches -- no offence but that is a crap answer
They are cheaper , easily available, stable and hard.