From Swiss Typefaces (formerly Optimo). This is a modern reinterpretation. It is slightly warmer than Helvetica but maintains the condensed skeleton.
On the screen, the font looked geometric, severe. It was the architecture of the Bauhaus condensed into letterforms—tall, narrow, stripped of any unnecessary flourish. It was the font of public transit schedules and government warnings, elevated to a shout. switzerland condensed extra bold font hot
To give the heavy text a "hot" radiating quality: From Swiss Typefaces (formerly Optimo)