Underpads are absorbent disposable or reusable pads designed to protect beds, chairs, and surfaces from moisture and spills. They feature a soft top layer for comfort, a highly absorbent inner core, and a waterproof backing to prevent leakage. Commonly used in hospitals, clinics, and home care, underpads are ideal for patient care, incontinence management, and post-surgical recovery, ensuring hygiene and easy cleanup.