Protects Roho Cushions From Rough Wear And Tear Fluids And The Degenerating Effects Of Poor Quality Ozone Helps Protect The Cushion From Rugged Use And Every-day Wear And Tear Protects Against Incontinence With Its Fluid-resistant Material And Durable Construction Although This New Cover Is Ruggedly Designed It Still Allows For The Benefit Of The Therapeutic Skin Protection Of The Roho Cushion Allows For Easy Access To Roho Cushion Valves And The Isoflo Memory Control On Select Series Cushions With A Double Pull Zipper