This high-back office chair combines a high-elasticity mesh backrest with a high-resilience foam seat cushion, offering excellent support and breathability. Both the headrest and lumbar support are vertically adjustable to meet the personalized needs of users of different heights. The backrest offers a wide recline range and can be locked at any angle; combined with a retractable footrest, users can easily switch from work mode to rest mode—perfect for midday naps or long gaming sessions. The chair supports 360-degree swivel and seat height adjustment, featuring a sturdy seat structure designed to resist deformation over long-term use. Easy to assemble—setup takes about 15 minutes; all necessary screws and tools are included, along with clear instructions. Suitable for extended periods of office work or gaming.