The AAC 121 Soft Duo combines a soft quilted shell with contrasting materials, complemented by a formal aluminium swivel base. This design maintains a high backrest and spacious seat, characteristic of the series, with a functional base featuring legs that extend from the center. The base is crafted from polished or powder-coated aluminium, while the quilted shell is available in two different textiles or leathers, offering a distinctive appearance suitable for corporate, public, or private settings. The shell is made from 10 mm injection-molded polypropylene with 10% glass fiber, fully upholstered with layers of foam and wadding. The 4-star swivel base is cast in aluminium, available in black powder-coated or polished finishes, making it ideal for dining tables, café chairs, and conference room furniture.