Muslin is a cotton fabric of plain weave. It is made in a wide range of weights from delicate sheers to coarse sheeting. 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. The coarser varieties are often of irregular yarns and textures, bleached, unbleached, or piece-dyed and are generally finished by the application of sizing. This plain-weave material can be used a thin blankets or as a backing for quilts.