The AAC 121 chair with an aluminium swivel base has a slightly more formal expression than the other variants in the About A Chair collection. It retains the high backrest and generous seat that characterise this entire series, offering a functional base with legs that fan out from the centre.

It is available in standard upholstery with a wide choice of fabrics and two base finishes. As a result, it fits seamlessly into a broad range of public and private contexts. A soft quilted variant, the AAC 121 Soft, is also available.