This model 301 is a very solid chair. A molded plastic tub on four big legs, one in each corner. The molded foam interior is upholstered and put into the plastic mold. The total package arranges great comfortable seating. The molded plastic part is in excellent condition, as is the molded foam. The brown upholstery is solid, but does have signs of age and use. The brown upholstery does indicate the age of the chair. The brown color was popular in the late sixties, early seventies. The designs of Pierre Paulin are sought after. Also due to big exhibitions such as the one in the Centre Pompidou (Paris, France) from May to August 2016.