Red Omstak chair by Rodney Kinsman for Bieffeplast (1980)Red Omstak chair by Rodney Kinsman for Bieffeplast (1980) This striking red Omstak chair is a design by British designer Rodney Kinsman for Italian Bieffeplast. The industrial design with perforated seat and backrest has become an icon of functional postmodern design from the 1980s. Style and functionality The perforations provide not only a graphic effect, but also airiness and comfort. The slender steel tube frame and bent steel seat make this chair