Muslin is a lightweight, breathable fabric made from cotton or a cotton blend. It is known for its soft texture and versatility, making it popular for various uses, including clothing, curtains, and quilting. Muslin can be found in different weights and finishes, ranging from sheer to more opaque options. Historically, muslin originated in the Indian subcontinent and was highly valued in trade. Today, it is often used in sewing as a pattern-making material, allowing crafters to test designs before cutting into more expensive fabrics. Its affordability and ease of use contribute to its widespread popularity.