X is a reinterpretation of a stacking chair which combines functionality and comfort in a clean, appealing design. Due to innovative construction, up to 60 chairs can be compactly stacked. This means almost 1.5 times the stackability when compared to conventional models. The chair consists of an elegant pipe steel frame and a flexible seat made of thermoplastic polyolefin (TPO) which adapts to body pressure and is as comfortable as any upholstered piece of furniture yet easier to clean. The chair’s use of recycled PP materials is testimony to its ecological credentials.