The garment is lined with a soft shell fabric and secured around the dog's waist with a Velcro closure. When the animal attempts to lift his leg and urinate, the band prevents the urine from escaping, and it is drawn into disposable pad. At clean up time, the pad is thrown away and replaced with a fresh one. If the outer shell is damp, it will be necessary to rinse it and allow it to dry before further use. For this reason, it's best to have at least two bands on hand so you'll always have a clean, dry band available when one becomes soiled.