Driade - Armchair Costes - Natural wood - Painted steel - Designer Philippe Starck; Driade Armchair Natural wood Wood. Dimensions: L 47,5 cm x D 58 cm x H 90 cm - Seat: 47 cm. Costes is an armchair that marked in 1984 the beginning of the collaboration of Philippe Starck with Driade, and his consecration in the olympe of design. To the simple drawing, a wooden shell envelopping and three metallic feet, Costes right away imposed as an icon of the design of the XXe century, sold in millions of copies, copied many times and present in all design collection contemporary.