In 1928, designers Le Corbusier, Pierre Jeanneret, and Charlotte Perriand teamed up to develop a lounge specifically for relaxation. In 1965, Cassina began producing the chair—and it immediately became notorious. Making comfort and relaxation a top priority, they found the perfect fusion of form and function through extensive research. Supported by an adjustable frame made of chromed tubular steel, the base's cross-bar is covered with rubber tubes that guarantee stability at any angle. To complement the black enamel steel base, you can choose to have the mat covered in a range of leathers, hides, or a beige canvas—all of which come with a leather headrest made with polyester padding. It's built to slide on the base for a range of seating angles.