FoamRush 4" x 23" x 72" Water-Resistant Dry Fast Outdoor Upholstery Foam Sheet for Outdoor & Marine Furniture (Chair Cushion Foam for Patio Furniture, Boat Seat Cushion Replacement) High Density Foam Rectangle Compression = firmness compression (not

Compression = firmness compression (not density) is what determines firmness

Square Pad

44lb compression

gel infused memory foam is still very effective in offering pressure relief

Bunk (30" x 75")

FoamRush 4" x 23" x 72" Water-Resistant Dry Fast Outdoor Upholstery Foam Sheet for Outdoor & Marine Furniture (Chair Cushion Foam for Patio Furniture, Boat Seat Cushion Replacement) High Density Foam Rectangle Compression = firmness compression (notDry Fast foams are suited for outdoor use where moisture and precipitation like rain is prevalent, such as in patio furniture, or in marine cushioning on personal watercraft. The large, open cells provide a degree of airflow not present in other foams, allowing it to dry quickly, even after complete saturation. Because of the air flow, Dryfast foam could also be used in home products like bedding. Dry Fast Foam is a durable and beneficial filling for