A chair created by the designers of the U.S. studio Swinton, that provides a new perspective of comfort. A concept born through a study in physics and the inspiration given by the ancient arched stone bridges, between cunning, ingenuity and a good dose of creativity. A structure formed by two flexible panels overlapping and joint in the middle part, made of twenty-five wooden elements, rigid and completely flat when not in use, but with a simple movement reminiscent of zippers, opens to become a unique and original seat.