The Serta SitTrue Rayne Task Chair is ergonomically designed. The Serta chair is built for productivity and comfort, featuring a breathable mesh seat back for increased airflow while you work. Featuring a SitTrue seat cushion with pocket coils and memory foam, the design of this mid-back office chair contours and supports natural movement. An adjustable lumbar pad allows additional support, while adjustable height, tilt lock and recline tension ensures that users can find their own personalized settings to optimize comfort.