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.