An incontinence pad is a small, impermeable multi-layered sheet with high absorbency that is used in the incontinence and health-care industries as a precaution against fecal or urinary incontinence. It is generally made of cotton if washable, or paper if disposable. Incontinence diapers (or incontinence nappies) are a common incontinence pad. Incontinence pads are usually placed in an undergarment or on a bed or chair under a person. Incontinence pads are manufactured in light and heavy grades which offer a range of absorbencies, often referred to as a 'working capacity', which refers to the true absorbency an incontinence pad offers when in use. These sorts of pads can come as panty-liners, inserts, pads or even available as replacement underwear.