With a ventilated back for air circulation and tilt limiter that lets you adjust tension and range to your liking, this chair accomplishes a great deal with only the essentials. "I knew that creating a work chair is one of design’s greatest challenges, an intimidating project in every possible way," says Swiss designer Yves Béhar. "There is no place to hide in a chair. Every part serves a structural or tactile purpose." The Sayl chair is 90 percent recyclable.