Thanks to its knife-edged, down and memory foam seat and back cushions, Spen S is as relaxed as it is poised. The sofa is modular and can be specified in a variety of configurations and offered in a choice of either studio or grand seat depths. Spen S features an advanced unidirectional suspension system using premium high-density and high-resiliency foam seat cushions encased in down. It is available in a wide range of fabrics and leathers. Lifetime warranty on the frame and suspension.