Featuring a swivel base in steel, the About A Chair AAC20 by HAY conveys a more formal expression than its wooden-legged counterparts from the series. The distinctive curved shell provides a soft, unified silhouette and legs that fan out from the centred base. The cast aluminium swivel base is available in polished or powder coated finishes, and the polypropylene shell comes in diverse colour and upholstery options, allowing a multitude of design combinations that make this series so versatile.