Cold moulded polyurethane foam, which wraps an injected polypropylene frame completely. It is later upholstered by means of a fabric cover. Everything is protected by a varnished solid wood cover. Polyurethane density 55 Kg/m³. SeatCold moulded polyurethane foam, which wraps an injected polypropylene frame completely. It is later upholstered by means of a fabric cover. The seat pan folds by means of an automatic noiseless maintenance-free double spring.