Lining refers to a material or layer placed inside a garment, bag, or other items to provide a finished look, added comfort, or protection. It can be made from various fabrics, such as cotton, silk, or polyester, and is often used in clothing like jackets, skirts, and dresses to enhance their appearance and durability. In addition to clothing, lining is also used in other products, such as bags, shoes, and home furnishings. It helps to improve the structure and longevity of these items while also offering a smooth surface against the skin or other materials.