Hefring Slab is a geometric Slab Serif type family. Based on simple geometry, it has minimal stroke contrast, solid serif presence and a uniform thickness of strokes. The family consists of 20 fonts: 5 weights in 4 widths, each in Roman and Italic. Inspired by the work of the renowned Margaret Vivienne Calvert, Hefring Slab is robust, clear and functional. Opentype features include alternative characters, arrows, tabular figures, ligatures and fractions.