Piuma Chair"Piuma" is one of the most revolutionary and daring products in the evolution of technologies and materials used by Kartell. This is the first time that a material containing carbon fibre has been injection moulded. The seat has a minimum thickness of a few millimetres (2 mm at most) resulting in an ultralight chair (just 2. 2 kg). Piuma is very light and very thin, but also incredibly strong, flexible and suitable for outdoor use.