Ploum sofas are the fruit of research into comfort. This is based on a special combination of two materials: a stretch covering and hyper-soft foam. In accordance with the wishes of designers R. & E. Bouroullec, the large sofa features an asymmetrical construction: the right-hand backrest is slightly higher than the left, the right-hand seat is slightly deeper than the left, and the back of the backrest zips off-center.