Stefan Diez has developed a completely new construction method for the modular sofa whereby the individual components are not permanently attached to each other. At the heart of Costume is a body made from recycled and recyclable polyethylene produced using rotational-moulding technology from furniture and car industry waste. An insert made of pocket spring cores provides the cushioning for the seat and backrest. On top of this is a thin layer of polyurethane foam. The whole is held together by a cover made of fabric that can be fastened on using tension belts and easily removed at any time. Not only does this system use much less foam in manufacturing than conventional sofas – most of the materials used can also easily be recycled. If the upholstery wears out one day, it can easily be replaced.
Costume comes with a total of just four different elements: the actual seating module, which can be completed with a left or right armrest and an ottoman. A connector of plastic, which is pushed into the slots on all four corners of the seat, serves to connect the pieces. Available in matching as well as in contrasting colours, it creates an aesthetic feature. The four elements-seat, armrests and ottoman can be assembled to form numerous combinations depending on requirements and space.