Ergonomic Support for Head, Neck, Lumbar, and ArmsThis office chair features an ergonomic backrest and a 60° adjustable headrest that contours to your neck for precise support. The adaptive lumbar support prevents lower back strain and injuries, optimizing posture to reduce neck and back fatigue. Stay comfortable and productive even during long work hours. 3D Adjustable Armrests for FlexibilityThe 3D armrests have a unique bounce-back design for easy height and direction adjustments. As the result, this chair is suitable for people of different heights. The seat height ranges from 18.9 to 22.4 inches, while the backrest reclines from 90° to 135°. These adjustments provide customizable seating options to reduce arm strain and maximize workspace efficiency. Breathable Mesh and Dual-Layer Cushion for All-Day ComfortThe backrest and seat are made of breathable mesh for excellent ventilation, preventing heat buildup during long sitting sessions. The dual-layer high-density foam cush