KERDOM office chair elegantly blends comfort and style is the perfect seating solution for your workspace. Ergonomic mesh S-shaped backrest provides lumbar support and relieves fatigue. 8 cm high density foam cushion provides you with optimal comfort and 90° adjustable armrests fully save space. All important components (such as armrests, 360° silent casters, air rod and nylon metal tray) are tested and improved by BIFMA. Maximum capacity: 300 lbs.