Harry Bertoia's delicately industrial Side Chair is among the most recognised achievements of mid-century modern design. Like Saarinen and Mies, Bertoia found sublime grace in an industrial material, elevating it beyond its normal utility into a work of art.Innovative, comfortable and strikingly handsome, Harry Bertoia's side chair's delicate filigree appearance belies its strength and durability. The frame is a welded steel construction with rods in Rilsan, a very durable and adhesive fused nylon-dipped finish. Scratch, chip, and chemical resistant. Stainless steel connections. The unupholstered Side Chairs in Rilsan are also appropriate for outdoor environments.