Muslin, plain-woven cotton fabric made in various weights. The better qualities of muslin are fine and smooth in texture and are woven from evenly spun warps and wefts, or fillings. They are given a soft finish, bleached or piece-dyed, and are sometimes patterned in the loom or printed. Grades of muslin are known by such names as book, mull, swiss, and sheeting. Muslin is an all-natural, cotton sheeting fabric that come bleached or unbleached and in widths from 36 inches to 118 inches. An inexpensive fabric, muslin is popular for use in Baby Products.