High resilience foam gets its name from its properties that allow it to quickly regain its shape. The highest grade of polyurethane foam and weighs 2.5 lbs or more per cubic foot. HR foam has a more random cell structure when compared to other foams. This configuration of cells adds support, resilience and bounce. High-resilience foam snaps back to its original shape immediately after compression, while regular foam tends to lag and take a few moments to reshape. HR foam can be washed, dry cleaned, steamed, and sterilized. It’s odor-resistant, non-allergenic, bacteriostatic, and resistant to mildew, fungi and insects. HR foam is supportive, comfortable and durable.