FF Sero combines the striking forms of an American Grotesque with the legibility of a Humanist Sans Serif typeface. It has open contours, a distinct x-height and a homogeneous grey scale value. During the seven years of development the classic letter forms have matured and turned into a balanced, sovereign typeface. Eight harmonized weights and an extensive character set allow for a flexible and versatile typography. Cyrillic and Greek characters provide an extended language support.