Hay About A Chair AAC 26HAY About A Chair AAC 26 is a chair which works just as well around the dining table as around a conference table, in a canteen or at the office. The ambition of the designer Hee Welling has been to combine form, function, comfort, detail and aesthetics. AAC26 has a 4 legged base in polished or powder coated steel, which gives the chair a more formal expression. The shell is available in many different colours and also fabrics leathers.