The document discusses the key features that make an ergonomic chair, including adjustable seat height, width and depth; lumbar support; adjustable backrest and arm rests; swivel base; stability; and padded seat material. It then summarizes the features of Featherlite chairs that provide ergonomic support, such as the nylon base, castors, gaslift mechanism, plywood seat and back with foam padding, adjustable mechanisms, arms, tension knob, and minimum stock levels of various chair models.