Metal frame, cold-moulded in foam. The base is in laser cut metal, in the finishes: bright shaded brown, bright light gold, matt Champagne gold, bright chrome, bright black chrome, matt nickel, painted bronze. The base rotates completely with a self-aligning mechanism in the same finish as the chair. Lumbar cushion in sterilised goose down with removable cover. The upholstery is completely glued to the chair, and therefore not removable. Finish- Leather P9 Nuvola.