Kaleko 105 is inspired by the classic, geometric sans-serifs such as Gill Sans, but has shallower ascenders and descenders for a more compact look. It's a well-balanced, versatile, modern sans, highly legible as a text font and with a clean, elegant look as a display font at larger sizes.

The Kaleko 105 family comprises of five weights, and is closely related to Kaleko 205. The most notable differences between the two variations, are the single-storey lower case a and g in Kaleko 105, where they are two-storey in Kaleko 205.