Woven fabrics are a type of textile made by interlacing two sets of yarns or threads at right angles to each other. Common examples of woven fabrics include wool, twills, wefts, and failles. Wool is a type of fabric made from the fleece of sheep and other animals, and is known for its warmth and durability. Twills are a type of fabric with a distinct diagonal pattern, usually made from cotton, linen, or wool. Wefts are the horizontal threads in a woven fabric, and failles are a type of lightweight fabric with a soft texture, usually made from silk or cotton.