Although conceived in 2001, the FLEXFORM groundpiece sofa remains a best-seller for the italian furniture brand. maestro antonio citterio designed the piece in a way that transformed the very concept of the sofa. it reflected the changes of behaviour and aesthetics in our home, offering unprecedented levels of flexibility, from usage to configuration, and all in typical italian-made style and comfort. as its 20th anniversary approaches, the design still revels as the sofa for the modern home.