DESCRIPTION: Cu-Ergo 16" Memory Foam Back Cushion --- ITEM DETAILS: This Memory Foam Back Cushion from Karman Healthcare is excellent for any wheelchair user that is not satisfied with a standard gel or foam cushion. Using the best Memory Foam and even a waterproof cover, this is surely the best aftermarket cushion available to provide more support and comfort. SPECEFICATION: * Memory foam *Water resistant upholstery *2 inches thick