Ergonomic Comfort Designed to follow the natural four curves of the human spine, this ergonomic mesh office chair makes long hours of sitting far more comfortable. With fully adjustable headrest, lumbar support, 3D armrests, seat depth and height, plus a retractable footrest, you can customize every detail to fit your body perfectly-ideal for home office, study sessions, or late-night work.Seat Depth Adjustment Finding the right sitting position is easier with the 60mm adjustable seat depth. Whether you re taller or shorter, this feature supports your thighs and entire leg area to reduce pressure and improve circulation. Perfect for anyone spending extended hours at a computer or gaming setup, helping you maintain comfort from morning until night.Lumbar Support The split-back design with lift and rotate lumbar support adapts to your waist with a 10degree(s) rotation.