Pressure redistribuiton & cooling of a water based gel. High-density foam prevents bottoming-out. Cover is launderable & vinyl inner cover wipes clean for easy care and prevents urine from entering cushion.   #751039-16x16     #751040-18x16    #751044-18x18    #751042-20x16   #751049-20x18 Latex Free UNSPSC#42141705