Task chair offers a simple, light scale design that delivers remarkable comfort and dynamic support. Lumbar support can be easily adjusted up and down for personalized comfort and ergonomic back support. Nebula mesh back allows air to circulate for a comfortable place to sit in any environment. Plus, the unique construction facilitates side-to-side torso-flex to increase mobility and motion when reaching sideways. Soft, polyurethane arm pads easily adjust for added comfort. Waterfall seat design gently slopes away from the legs to minimize pressure on the thighs, promoting good posture. ENERSORB foam conforms to your body to improve blood circulation and relieve pressure points..