The Panton chair was first conceived by the architect and designer, Verner Panton, in 1960. Originally it was made in a rigid polyurethane foam and lacquered but this was prevented due to technical difficulties in the manufacture of the chair in this material. It was not until 1967 that the design came to be the first single-piece plastic chair to go into mass production, at this point made from injection moulded fibreglass-reinforced polyester. Although this chair design has been through several upgrades it is not until the 1999 polypropylene re-issue that the manufacture of this piece has reached what Panton originally set out to do - to create a chair out of a tough plastic, that is consistently dyed and has a matte finish. Special additives have been included in the material to slow down the fading process caused by ultraviolet light making the chair suitable for outdoor use.