Made by Humanscale® and designed by Niels Diffrient, the Diffrient World office chair is incredibly comfortable and intuitive. It automatically adjusts the angle of recline as you move naturally in the chair, providing support without the use of knobs and levers. Its frameless front edge eliminates contact stress behind the knees, while the arms move with the backrest for dynamic support, making it easier than ever to achieve comfort while you work.