20-06 by Foster + Partners, 2006 Norman Foster envisioned a more “neutral” chair - visually and physically lightweight. Built by hand from 80% recycled aluminum in Hanover, Pennsylvania, the 20-06 is lightweight, non-corrosive, fire resistant and super strong. Guaranteed for life. Low carbon footprint. Stacks 12 high. Seat and back pad available. Standard glides: Soft plastic TPU glides. Alternative glides available at an upcharge.