Sep sofa was designed for DELTA office collection in 2011, with its chic and elegant line of design, as a work environment furniture. SEP is an alternative to fully industrial products that only have a form used in work environments. Natural materials and details referring to traditional styles are used in the product. Knitted leather crafting on a stainless steel profile frame in the back support part provides the half transparent effect of the product. SEP, with a strong look from behind as well, functions as a separator between units, too. The space behind the sofa/couch is left for storage. The tray on the side can be used as a side-tray. The simplicity in its material and method of production provides the benefit relationship between its production and its end-user.