Wool

Wool fabric is the most common textile in the world after Cotton. It is created from natural fibers which are extracted from animals like sheep, goats, camels, etc. The raw material of wool is basically made from keratin-based proteins which make the fabric elastic.
The wool is Woolen yarn is soft, light, stretchy, and full of air. It is thus a good insulator, and makes a good knitting yarn. Woolen yarn is in contrast to worsted yarn, in which the fibers are combed to lie parallel rather than carded, producing a hard, strong yarn.