Knoll Bertoia Upholstered Side Chair. Featuring delicate filigreed construction that's supremely strong, the airy seats of the Bertoia Seating Collection (1952) are sculpted out of steel rods and have a relaxed sit. The collection was an experiment with open forms and metal – an extension of Harry Bertoia's work in sculpture – and remains one of the most iconic contributions to modern furniture design. Finishes: Brown Upholstery / Polished Aluminum Metal Frame. Comes as a pair.