The Icare back cushion is ergonomically designed to provide correct posture and relieve stiffness and pain.It provides targeted support and is contoured to reduce muscle strain. Pressure-relieving ActiveX™ material reduces pressure in the area of discomfort. The back cushion has a back strap with clip to enable fastening to a chair etc and a zip-off washable cover.Ventilated Base FabricVant fabric is a three-dimensional polypropylene material that has high air permeability and is anti-bacterial. Using this in the base greatly increases air movement.