Outline Siru 5 is a very light, normal width, low contrast, upright, normal x-height font.
Keywords: display, headlines, posters, branding, packaging, modern, minimal, airy, technical, clean, outline display, geometric clarity, lightweight framing, modern branding, rounded, geometric, monoline, outlined, open counters.
A monoline outline sans with rounded corners and softly squared curves. Strokes are rendered as a single continuous contour, producing hollow letterforms with consistent line thickness and smooth joins. Proportions lean geometric with generous bowls and open apertures; the lowercase is simple and legible with a plain, single-storey construction where applicable. Numerals follow the same rounded, even rhythm, giving the set a cohesive, engineered look.
This font is best suited to display contexts such as headlines, posters, packaging, and brand marks where the outline construction can be appreciated at larger sizes. It can also work for UI accents, labels, and short callouts, especially in clean, modern layouts that benefit from a light, architectural typographic voice.
The overall tone feels contemporary and light, with a crisp, schematic quality that reads as modern and slightly futuristic. Its hollow construction adds a sense of spaciousness and delicacy, making the font feel airy and refined rather than bold or expressive.
The design appears intended to provide a clean, contemporary outline sans for high-impact display use, emphasizing geometric clarity and consistent rounded detailing. Its hollow construction suggests a focus on layering, color fills, or overprint effects where the outline can act as a structural frame.
Because only the outlines carry the form, interior spacing and counters become the dominant visual feature; at smaller sizes the thin contour can recede, while at larger sizes the clean geometry and rounded terminals become more apparent. The character set shown maintains consistent corner radii and stroke behavior across uppercase, lowercase, and numerals, supporting a uniform texture in lines of text.