»La Chaise« was created as an entry for the »Low-Cost Furniture Design« competition held by the Museum of Modern Art in New York. »La Chaise« consists of two paper-thin fiberglass shells glued to each other but separated by hard rubber discs; the intervening space was filled with polystyrene foam. Charles and Ray Eames left the plastic shell untreated. The base is made of five in part angled metal rods inserted into a cross-shaped wooden structure. The space left open between back and seat is not technically necessary, but instead purely a design element. The intention was to emphasize the chairs light weight visually by perforating the otherwise large volume of the shell.