【Ergonomic Office Chair】Engineered for all-day comfort, this office chair features lumbar support and a customizable headrest to cradle your neck and spine. The ergonomic design actively promotes healthy posture, distributes pressure evenly, and significantly reduces muscle strain during extended sitting.Max weight capacity: 300 lbs 【Breathable Mesh Backrest】 Stay cool and supported. The elastic mesh moldsto your back's natural curve, providing targeted lumbar support while promoting optimal air circulation to keep you comfortable through long work sessions. 【15° Adjustable Lumbar Support】Fine-tune your comfort zone. The ergonomic mesh chair features precision lumbar technology that glides 15° up and down to perfectly align with your spine's natural curve, delivering targeted pressure relief and continuous support throughout your workday. 【Adjustable Headrest】Engineered for perfect posture, this computer chair features a multi-directional headrest that seamlessly adjusts in height, depth, and angle. It cradles your neck and skull to provide essential support whether you're coding upright or leaning back to recharge. Prevent neck strain and maintain optimal spinal alignment throughout long computing sessions. 【Quick & Easy Setup】Comes with clear instructions and a step-by-step video guide. Most customers complete assembly in just 10-20 minutes. Friendly customer support is always ready to help if needed.