In the Japanese culture, the “ki” represents the energy found in every element. It is the inspiration for the challenging formal research that Mario Bellini solved with refined and modern taste. The result is a sinuous, lightweight seat, partly due to its polyurethane foam inside. The back, embellished with an embossed decoration reminiscent of the diamond pattern of stitched fabric upholstery, is the formal feature for a chair that combines simplicity, elegance and ergonomics. After their orginal version in embossed white and black lacquer, the KI chairs have been presented in an open pore ash lacquer finish since 2013.