Office Star's Big and Tall Double Air Grid Back Ergonomic Chair is a comfortable and attractive place for anyone to sit. The chair is built to support up to 400 pounds and has a 22-inch wide seat, several inches larger than traditional drafting chairs. A thickly padded seat is upholstered with black mesh, and the mesh back allows good air circulation to your torso. Adjust the seat height, tilt tension, arm height and arm width for the optimal fit.