__FF Kievit Slab®, 2013. FF Kievit Slab is not just the Kievit Sans with slab serifs attached. It has been carefully adjusted and fine-tuned in width and contrast to help make it an extremely legible typeface. It comes in all nine weights with italics, small caps, old style figures, lining and tabular figures. Designed together with Paul van der Laan.