Supra-X is a new generation of affordable ergonomic office seating designed for appearance and comfort. Supra-X is built to stand up to the rigors of office use, but also offer exceptional comfort, value and style. The features incorporated include many user adjustments that allow the chair to be custom fitted for personal seating preferences and work functions. Control tabs on the outside back allow the adjustment of the lumbar support up and down to suit individual preference and provide optimal support where you need it most.