Ergonomic Office Chair,Mesh Office Chair with Lumbar Support,High Back Desk Chair with Flip-up Arms,400 lbs Big and Tall Computer Chair with Headrest,Comfy Desk Chairs

[Ergonomic Lumbar Support for Comfort] The office chair's premium mesh lower back support enhances airflow and thermal management while delivering targeted pressure relief to the waist area, providing focused support and reducing fatigue during extended work sessions. The removable lumbar support can also adjust the support angle via a rotary knob. Whether you are working, reading, gaming, or binge-watching, your lower back remains supported. [Adjustable Headrest for Neck] Customize your supportthe lumbar pad adjusts 1.57" vertically to align with your spine's natural curve, while the 3D headrest adapts to your preferred angle. [400 lbs Heavy-Duty Capacity] Constructed with a sturdy nylon frame and premium materials, this high-back mesh chair supports up to 400 lbs, making it suitable for larger individuals. It features an SGS class-4 gas lift for safety and durability. [Extra-Thick Cushion for Sitting] The 19.7" x 19.7" ventilated mesh backrest and 2.75" thick cushion offer ample seating space, accommodating users from 5.1" to 6.1" tall. The premium high-density foam seat is thicker and more resilient than standard pads, minimizing gluteal and coccyx compression for prolonged sitting comfort. [Hassle-Free Assembly] Clear instructions make setup straightforward