The supporting structure of the RP01 armchair is made from steel and pressed wood. Padding in fire-resistant non-deforming polyurethane. Curved external shell in pressed wood, veneered or entirely upholstered. Automatic tip-up seat with joints in noise-damping nylon. Underseat surface consisting of a wooden or completely upholstered panel. Upholstery in Pelle Frau® leather from the Color System, fabric or velvet, produced by hand with invisible riveting. Installed in rows using cast aluminium feet finished with scratchproof and shock-resistant epoxy powder paint.