The Butterfly sofa gets its name from the "butterfly" shape created by the outer corn that joins the armrest and the backrest. It is a modular seating system that responds effectively to th needs of modularity and comfort, suitable for free and informal usage. Its modular system is shaped around an ottoman which is the base piece, and allows to make a combination of elements, making it possible to freely set up versatile configurations, from in-line sofas to corner solutions, from front-facing to lounge layouts.