Full-Breathable Mesh Design: Premium black/patterned mesh backrest, headrest, and seat cushion offer continuous airflow to keep you cool and comfortable all day long. Dynamic Lumbar & Back Support: Contoured lower-back cushion provides targeted support to reduce strain and maintain natural spine alignment. 3D Adjustable Headrest: Angle- and height-adjustable mesh neck support to relieve tension during intensive work sessions. Multi-Functional Armrests: Height-adjustable 3D armrests tops give tailor-made elbow and forearm support. Heavy-Duty Aluminum Base: Polished metallic 5-star base with smooth-rolling casters ensures stability, durability, and effortless mobility across all floor types. Intuitive Recline & Lift Controls: Under-seat lever mechanisms make adjusting seat height, tilt tension, and recline angles smooth and effortless.