Medline Ultrasorbs Premium Underpads feature a superabsorbent polymer core that wicks away and absorbs fluid to help protect patient's or resident's skin while controlling odors while a non-liquid, permeable backsheet protects underlying surfaces and helps keep them dry. Their soft materials provide protection against friction and sheer which helps keep the patient or resident comfortable. Plus, air-permeable materials such as these are ideal for use on low air loss mattresses and specialty support surfaces.