A truly superb product. - Sculptured base including raised front provides correct positioning and controls forward thrust to maintain posture and ensure stability - 3-part construction relieves pressure and prevents bottoming out - Firm foam base fused to a sculptured middle layer of highdensity polyurethane foam - Sculptured top layer of ultra visco elastic memory foam offers hugely improved pressure reduction and relief - Controls sliding and lateral leaning whilst ensuring optimum comfort - Supplied with Harley Premium Dartex waterproof / VP cover - welded seams, anti slip base - Other options available. Suitable patients up to high risk (with appropriate nursing care).