Upholstered fabric easy chair
The keystone holds the arch, one of the oldest and strongest and of all architectural forms. The Keystone Chair comprises three autonomous yet symbiotic elements: a concrete back that buttresses the spine, a gently curving, ceramic arch for your sit-bone, and the wedge-shaped rubber voussoir that supports and completes the arch.
The chair was originally a 450-kilo sculpture, exhibited at a Milanese art gallery in 2014. Thomas Ibsen from PWtbS approached its Dutch designers, OS & OOS, and said, “Why not get this down to 30 kilos and upholster it? Turn it into a comfortable and practical piece of furniture?” He then teamed up with the Kvadrat to use their exclusive Raf Simons design collection. The chair has since become a collectors’ item, sold to galleries and contemporary art showrooms across the globe.
Light grey / Curry / Yellow-white
Blue / Pink / Grey
Green / Pink / Grey