Wipe down your polyurethane foam fabric with a microfiber cloth. Make sure all loose dirt and debris are removed.
Create a mixture of one part white vinegar and two parts tap water.
Wipe down the fabric with a cotton cloth soaked in the solution. Allow the solution to rest on the fabric for thirty minutes. This will disinfect the fabric. Polyurethane foam will not absorb the solution.
Rinse the fabric with warm water. Allow to air dry.