Coolhut office chair is ergonomically designed to provide comfortable back and lumbar support. Mesh backrest and mesh seat keep air circulation for more comfort. 90° adjustable armrests can be flipped up to save space. All important components (such as armrests, 360° silent casters, air rod and nylon metal tray) are tested and improved by BIFMA for safety and peace of mind. The maximum load capacity is 300 lbs. This product is participating in the Walmart+ Weekend big deals! Shop now!