KEY DETAILS Brought to you in collaboration with New York-based Humanscale®. Plastic legs, arms and base. Aluminum swivel mechanism. Seat and back covered in your choice of fabric upholstery: Corde 4 (96% nylon, 4% polyurethane), Catena (69% poly elastomeric, 22.4% nylon, 8.6% polyester) or Autumn (100% recycled polyester). Height-adjustable. Without manual controls to adjust, the user can change postures effortlessly throughout the day. Automatic, weight-sensitive recline. This contract-grade item is manufactured to meet the demands of commercial use in addition to residential. See more .