The Tomato Chair was designed by the Scandinavian designer Eero Aarnio for Adelta in 1971. Its production therefore comes at a time when the difficulties associated with the design and production of fiberglass are completely overcome thanks to molding techniques that the same designers helped to improve. In Eero Aarnio's production, the Tomato Chair represents an evolution of the Pastil Chair, an ovoid chair that resembled the shape of a tablet and which earned Aarnio, in 1968, the Design Award of the American Institute of Interior Designers. The Pastil Chair could float and carry a person in water, but it was unstable. It was enough for Arnio to imagine adding three spherical elements to the Pastil design, two on the side and one on the back, to stabilize the new seat that took the name of Tomato Chair. The three spherical elements added, in addition to giving stability to the chair, also performed the functions of armrests and backrest. The lexical component also makes this session celebrated. The word tomato, in fact, in its English version, reflects its appearance: looking at the chair from the front, you can see the two spherical shapes that correspond to the two "o" of the word "tomato".