Yün, or wool, is a natural fiber obtained from the fleece of sheep and other animals like goats and alpacas. It is known for its warmth, softness, and durability, making it a popular choice for clothing, blankets, and textiles. Wool fibers can absorb moisture while still keeping the wearer warm, which is why it is often used in cold climates. The process of obtaining yün involves shearing the animals, cleaning the fleece, and then spinning it into yarn. This yarn can be dyed in various colors and woven or knitted into different products. Yün is also biodegradable, making it an environmentally friendly material.