Design of a chair with an emphasis on the psychological impact on the people is the content of this thesis. The starting point for the design is theoretical part, where basic informations about ergonomics, psychological aspects of seating and design development are arranged. Before proposing the need was to do survey of current trends and products with a similar nature, according to typology, and according to the material. In the chapter "The design" is described proces of designing, which is supplemented by pictures of sketches, models and visualizations. The final design of the chair is demonstrated by visualizations and photographs of 1:1 model.