AAC 221 is a version of HAY's About A Chair collection designed by Hee Welling, distinguished by a fully upholstered shell mounted on an aluminium swivel base — a combination that balances the softness and comfort of upholstered seating with the functional versatility of a swivel mechanism. The curved shell with its slightly higher back offers a generous seat depth and a level of comfort that makes the AAC 221 appropriate for extended periods of seated use, while the lower armrests provide support without restricting movement or preventing the chair from fitting beneath a standard table.

The swivel base introduces a more functional, workspace-oriented character to the design while the upholstered shell retains the warmth and material quality associated with the broader About A Chair family. The combination of a higher back and full upholstery gives the AAC 221 a more formal, considered presence than some versions of the collection, making it effective in both residential and commercial dining and workspace contexts.

The AAC 221 is well suited to residential dining rooms and home offices where an upholstered swivel chair of genuine design quality is required, as well as to conference rooms, corporate dining environments, and hospitality settings where the combination of comfort, flexibility, and a refined aesthetic makes a positive contribution to the overall interior quality. Available across HAY's upholstery range.

HAY produces the AAC 221 to the construction and upholstery standards consistent with the broader About A collection, supporting long-term comfort in sustained use.

Available as a 2D DWG drawing and 3D model.