Ebay offers Steelcase Leap Chair, -Open Box- Fully Loaded Black Fabric for $299.11 (orig. $923.99) with free shipping.

Product Description:
The Leap Chair  by Steelcase was built on a model incorporating the most ergonomic and comfortable features in contemporary seating technology. Its back changes shape to support the entire spine, its Natural Glide System allows you to recline and yet maintain your position so you stay oriented to your work. This encourages more varied postures so there's less static load on the spine. Tastefully designed Slats in both its back and seat promote thermal comfort and "breath ability," effectively controlling the balance of heat and moisture so you stay comfortable for long periods.
Features:

• Seat height Adjusts Pneumatically
• 5" range of adjust ability (15.5"H to 20.5"H from floor) Height Adjustable Arms, adjust up and down (4")
• Flexible Seat Edge
• Lower Back Firmness
• Upper Back Force Control
• Variable Back Stop
•   Black Fabrics

Dimensions:

• Overall Size - 27" W x 21.75" - 24.75" D x 38.5" - 43.5" H
• Chair Size - 19.25" W x 15.75 - 18.75" D x 15.5" - 20.5" H
• Back Size - 18" W x 25" H - From Seat