Painted steel internal structure, guaranteed for 10 years. Polyurethane foam padding in different densities, upholstered with composite acrylic fibre. The cylindrical armrest is made of polyurethane foam, covered by a soft layer of feathers. The polyurethane foam backrest is covered with a polyester layer. The backrest and armrest have a series of nickel-plated spheres inside to remain stable in any position. Removable cushions in goose down in baffle channels. The covers can be removed from all pieces