Frame: Solid wood.
Seat cushion: Shaped polyurethane of different density, sterilized down, polyester fiber cover.
Back cushion: Sterilized down, polyester fiber, cotton cover.
Back (SMPR_S): Multilayered wood panel, shaped polyurethane of different density, polyester fiber, sterilized down.
Back (SMPR_SL): Veneered multilayered wood panel.
Back (SMPR_SA): Interlacing in natural cellulose rope.
Cover: Fabric or leather.
Back cushion cover: Fabric.