Materia is a chair with snug structure in solid wood, where backrest and seat are connected through dovetail joints, designed by Claudio Bellini for Riva 1920. In this version it has revolving iron base The Materia chair fits into the great Riva's philosophy: genuine, authentic furniture, able to last over time. It is a sculptured monolith with a curvy and sinuous design and have an ergonomic seat in a continuous line with the back. Materia is a unique piece of design, able to enhance the most refined settings.