Cotton muslin fabric is a lightweight, plain-weave textile made from 100% cotton fibers, known for its soft, breathable, and versatile nature. With a loose weave and smooth texture, muslin is gentle on the skin and highly absorbent, making it ideal for garments, linings, and household uses. It ranges from very sheer to dense weaves and is widely used in fashion prototyping (toiles), baby products, and culinary applications.