Underground Pro expands on the historical design by Edward Johnston, licensed exclusively to P22 from the London Transport Museum. The overall design of Underground Pro is kept as intended by Johnston and remains within his system of proportions. Additional OpenType features, such as Small Caps and Petite Caps, are included in all 6 weights. A Titling option that mimics London Transport signage is offered in the medium weight. The addition of many unicode ranges for unprecedented language support makes this the most expansive P22 font family ever. Each Pro font weight collectively contains over 5000 glyphs, covering most Latin based languages, with separate Greek (polytonic) and Cyrillic versions. The outlines of the original Regular and Bold have been subtly redrawn and expanded, they are now available as Medium and Heavy respectively. The original P22 London Underground Set is still available.

This family is available at a discount in the Works Collection.