The center of the cushion is XPE foamed polyethylene impregnated with fire retardant, the center is then fully wrapped and encapsulated in a fire retardant cloth made from cotton - impregnated with fire retardant, the center cushion foam and the fire retardant cloth are then fully wrapped and encapsulated in an outer cover which is a 70% polyester and 30% cotton woven fabric, it is impregnated with fire retardant and has anti-microbial properties, it is PU coated on the outside only.