Trix Sofa 6025 by kartell. Trix is made up of three different elements connected by an elegant system of elastics which can transform and adapt to different uses through easy rotation. Trix can be an original two-person pouf, a comfortable bed, chaise lounge and inviting armchair. Trix is made of foam polyurethane upholstered with a removable 3D patterned technical fabric. Trix Sofa 6025 by kartell is designed by Piero Lissoni.