Classics are around for a reason. Lina Bo Bardi designed the Bowl chair in 1951. The semi-spherical body rests on a metallic ring and seems to have reached the zenith of simple, undiluted forms. Bardi wanted her unfussy form to blend seamlessly into any space, so she created a seat that can be swiveled into different positions. For the moment, it’s that rich purple fabric that’s caught most of the attention.