Base fabric:100% polyester (min. 90% recycled)Base:Polypropylene plastic, Polypropylene plasticAdjustment lever/ Seat frame/ Armrest frame/ Mounting plate/ Hub/ Leg frame:Steel, Epoxy/polyester powder coatingComfort filling:Polyurethane foam, Polyurethane foamTop:ABS plasticLining, top:100 % polyesterElastic band:60% rubber, 40 % polyesterHook and loop fastener:100% nylonSewing thread:100% polyester