This seat conforms to your Life with it’s 3D Adjustable Armrest and Lumbar System, 135 Degree Back Tilt and Smooth HydraLift. Mesh Headrest adjusts up and down while the 3D Adjust Arms go sideways, up and down for the best fit to your body. 3D Lumbar Support hugs your back, while the seat lifts up and down for the ultimate custom fit in the office. It’s breathable Mesh provides optimal airflow to avoid sweating and sticking. But it’s also smooth, and nothing like sitting on wire like many of the chairs you’ll see today. And while it’s good to take regular breaks, the High-back office seat from Ellyn Home Decor is so comfy you’ll forget you’re even working.