Tweed is a rough wool fabric that has been popular since the 19th century. It is usually woven with a plain weave and has a distinctive pattern of different colored yarns. The fabric is often used for coats, jackets, and other outerwear. It is also commonly used for upholstery and other home decor items. Tweed is a durable fabric that is resistant to wear and tear, making it a popular choice for many types of clothing.