Envelop Desk Product Story You move. Your chair moves. Why not your desk too? Named for the flexible work surface that slides to envelop you as you work, Envelop is the first desk designed to help you, your chair, your work surface and your technology work in harmony. Available with a standard pin-height adjustment or sit-to-stand height adjustable legs, it can support a full range of healthy seated and standing postures. Design Story The late Bill Stumpf and his design partner, Jeff Weber, have been responsible for many of the imaginative leaps that have produced our most innovative solutions. Bill designed the first ergonomic task chair, Ergon, introduced in 1974, and the Aeron chair. Jeff designed the Caper chair. Together, they designed Embody, the first health-positive task chair.