Executive Mesh Mid-back Chair provides flexible support during stressful workdays. Black nylon mesh over the back and seat offer a breathable surface that responds to the shape of your body. Ergonomic curve in the low back offers a more natural space for a more natural sitting position. Other comfort features include dual-action synchro tilt, pneumatic seat-height adjustment, 360-degree swivel, tilt and tilt lock. Plastic chair frame and plastic fixed arms in matching black are easy to clean. The five-star nylon base is equipped with dual-wheel casters for easy mobility. Weight capacity is 275 lb.Mid-back curved in all the right placesBreathable mesh on seat and back for cooling comfortLightweight and equipped with casters for easy movingPacked with comfort functions including dual-action synchro tiltOther functions: pneumatic seat-height adjustment, 360-degree swivel, tilt and tilt lock