An upholstered version of the 20-06 Stacking Chair, this chair is equally virtuous in its strength and lightness. Weighing just seven pounds, the frame of the 20-06 Chair (2006) is crafted out of 80% recycled aluminum and has a tensile strength three times that of steel. The hand-welded seamless construction is the result of a 77-step process developed in 1944, when Emeco first manufactured its 1006 Navy® Chair for use on WWII submarines. Designed by architects Foster and Partners for the Smithsonian expansion in Washington, D.C., the 20-06 table and seating series echoes the inventive geometry and ecological considerations they bring to architecture. Both the 20-06 Chair and Upholstered Chair are stackable up to 10 high and suitable for outdoor use. The chair has an estimated 150-year lifespan – longevity that means less impact on the earth's resources. Contributes to LEED Certification Credit #4.2 Recycled Content. Made in U.S.A.