This office chair features a breathable mesh backrest that provides lumbar support to help maintain a healthy posture. The seat cushion utilizes a waterfall-edge design; combined with adjustable lumbar support, it ensures comfort during extended periods of sitting. The armrests can be flipped up, making it easy to tuck the chair under a desk or sit cross-legged, offering flexibility for various spaces and sitting habits. Seat height, tilt angle, and lumbar support are all adjustable, and the chair swivels 360 degrees for easy mobility. The product meets relevant safety standards; the gas lift and casters are certified, and the internal seat structure uses eco-certified wood, ensuring safety and durability for long-term use.