This is an economical chair that satisfies the designer's pioneering commitment to create automatically articulated seating using, in this case, no mechanisms, but taking advantage of the fact that specially treated steel is endowed with 'memory' and flexes, always returning to its original configuration.

Accordingly, the backrest tilts back when the user relaxes and the seat moves forward to accommodate a more relaxed position. The result is a very comfortable chair albeit its very economical structure that makes a minimum use of material. 
To further the chair's low cost goal it achieves the economy of large scale production by reusing the existing plastic seat of the X &. Y contract chair system.