Beginning from a rectangular base with rounded edges; the walls deform gradually and slowly to reach the oval border of the bathtub. Matter stretches like an elastic cloth, forces design a new irregular shape yet harmonious and proportionally balanced. Solidea is made of Cristalplant or marble and expresses all the research by antoniolupi resulting in new and evolved forms. Transformer, hybrid and for this modern. Interpreter of a changeable matter molded to express dynamism. Oval Cristalplant bathtub complete with drain and pressure plug, siphon and flexible hose.