Loulou's seat, backrest and front legs are produced from polypropelene moulded into one piece. It's rear legs are galvanised and coated tubular steel. Loulou's seat, back rest and front legs are produced from polypropelene. It's back legs are galvanised and coated tubular steel. Philippe Starck designed the Lou Lou chair for Vitra production and is still manufactured solely by them today.