Ergonomic Lumbar Support Chair Backrest Designed with a bionic lumbar curve that aligns with the natural shape of the human spine, providing consistent support to both the upper and lower back. Helps maintain proper posture and reduces strain during long periods of sitting. strength breathable mesh allows for constant airflow, keeping you cool and comfortable. The fine mesh arrangement ensures durability and wear resistance, while the hollow gap between the mesh and backrest prevents heat buildup. Reinforced triangular mechanics structure with thickened carbon steel pipes for even stress distribution. Supports up to 150 kg load capacity, offering longterm stability and slip resistance. Curved armrest surfaces contour naturally to the arms, providing steady and gentle support. The wide, streamlined design fits the arm shape for improved comfort during work or relaxation. Use Scenarios: 1. Ideal for office workstations, promoting healthy posture during extended computer use. 2. Suitable for study desks at home, supporting students and remote workers for prolonged sitting sessions. 3. for leisure activities such as reading or watching television, reducing fatigue and back discomfort. Materials and Performance: Mesh: strength, breathable, wearresistant, longlasting performance. Frame: Thickened carbon steel pipes, strong loadbearing capacity, stable structure. Weight Capacity: Up to 150 kg. Armrests: Wide curved fit for consistent arm support. This ergonomic backrest is designed for users who value comfort, posture health, and durability, making it a practical solution for everyday seating needs.