The About a Chair AAC 21 modifies the more formal expression of the aluminium swivel base with the softness and warmth of the upholstered shell. Retaining the same curved shell with unified silhouette that characterises the entire collection, this design features a functional base with legs that fan out from the centre. The cast aluminium swivel base is available in polished or powder coated finishes, and the shell is offered in a variety of regular and quilted upholstery options. The multitude of variants and design combinations give this series great versatility in a wide range of corporate, public, and private contexts.