Individually moulded 100 natural latex for maximum support and comfort dry cleanable zip off cover orthopaedic ecological sanitised fabric reacts to body heat allergy free made to british standardsregulations the visco therapy pillows help relieve pain and sleep problems the unique design allows pressure relieving effects for the neck the visco memory latex pressure relieving material is temperature sensitive it responds to your body heat and weight by moulding into the natural shape of yo