Impress Ultra chairs take the great comfort of Impress seating and improve it. A mesh back conforms to the unique curvature of your back. The soft Impress seat can be covered with Teknit™ fabric, which stretches two ways and is specifically woven for the Impress Ultra seat. -High-back or mid-back task chairs and a guest chair -Seat adjustable (task chairs) -Back-height adjustable (mid-back task chair only) -Seat slide depth adjustable (task chairs) -Four arm styles (adjustable 360 degree pivot arm, adjustable T arm, fixed loop arm and adjustable loop arm)