The supporting structure of the Vanity Fair XC armchair is made from solid seasoned beech. The padding uses both hand-shaped vegetable horsehair and rubberised horsehair and the seat cushion is in goose down with a polyurethane foam insert to help maintain its form over time. The seat, backrest and armrest spring system consists of hand-tied steel biconical springs attached to jute belts. A row of leather-covered pins finishes the back and sides of the armchair. The upholstery is available in Pelle Frau® leather or fabric. A plate with gunmetal grey or gold finish bearing the Poltrona Frau® logo is attached to the back of the frame.