The Du 55 armchair has a steel structure with moulded polyurethane foam padding. The seat and backrest spring system consists of elastic belts. The conical feet are made from steel and come with three different finishes: ash veneer with a teak stain and antique-finish brass cap, lacquered black or polished chromium-plated. Du 55 can be upholstered in Pelle Frau® leather or removable fabric.