Slab Square Siko 5 is a bold, normal width, monoline, upright, normal x-height font.
Keywords: headlines, posters, packaging, sports branding, book covers, confident, editorial, collegiate, retro, sturdy, impact, authority, heritage, signage, branding, blocky, bracketless, high contrast (optical), ink-trap free, punchy.
A heavy slab-serif with compact proportions and strong, square-ended serifs that read as crisp blocks at display sizes. Strokes are consistently thick, with tight apertures and sturdy joins that create dense, high-impact word shapes. The round letters (like O and C) are broad and weighty, while straight-sided forms (like E, H, and N) feel particularly architectural. Numerals and lowercase follow the same robust construction, with a straightforward, no-nonsense rhythm and a slightly condensed, muscular texture in text lines.
This typeface performs best in display roles such as headlines, posters, book covers, and packaging where bold shapes and firm serifs can carry across distance and reproduction. It also suits collegiate or sports-oriented branding, labels, and short editorial callouts where a traditional slab voice adds authority and impact.
The overall tone is assertive and traditional, evoking classic print typography with a bold, workmanlike presence. It carries a collegiate and editorial flavor—serious, dependable, and attention-grabbing—without feeling ornamental. The weight and slab details give it a grounded, authoritative voice suited to headlines that need to sound established and confident.
The design appears intended to deliver maximum presence with simple, robust slab construction: a clear, traditional skeleton reinforced by thick strokes and square serifs for high visibility. Its consistent, block-forward detailing suggests an emphasis on strong branding and emphatic typographic hierarchy in print and signage contexts.
In longer settings, the heavy color and tight internal spaces create a dark, poster-like texture; generous tracking and ample line spacing help maintain clarity. The slab treatment is consistent across uppercase, lowercase, and figures, producing a cohesive, sign-ready feel with strong baseline stability.