Yarn !!top!!

The magic lies in friction. When individual short fibers (staples) are twisted, the outer ends wrap around the inner ones. If you try to pull the yarn apart, the fibers press harder against each other, increasing friction and resisting the break. This is the "Z-twist" and "S-twist"—terms referring to the direction of the spiral. A balanced yarn usually consists of two or more single strands plied (twisted) together in the opposite direction to create a stable, balanced rope.

: Wool (from sheep), alpaca, cashmere, and silk are prominent animal fibers. They are known for providing excellent thermal insulation, elasticity, and moisture absorption. The magic lies in friction