Sans Superellipse Irfu 5 is a very bold, wide, medium contrast, upright, tall x-height font.
Keywords: posters, headlines, logotypes, packaging, sports branding, industrial, retro, commanding, sporty, playful, maximum impact, retro display, industrial tone, space efficiency, distinctive counters, rounded corners, blocky, compact, bulky, ink-trap hints.
A heavy, block-built sans with rounded-rectangle (superellipse) forms and softened corners. Strokes are thick and largely uniform, with compact counters that read as small rectangular cut-ins. Many joins and inner corners show deliberate notches and slot-like apertures, lending an engineered, stencil-adjacent texture without breaking the silhouettes. Proportions feel broad and squat in caps, while lowercase remains dense and highly space-efficient, producing a tight, forceful rhythm in text.
Best suited to display use: posters, covers, bold editorial headers, event graphics, and packaging where high impact is needed. It also works well for logotypes and wordmarks that benefit from a compact, engineered look, and for sports or product branding that wants a sturdy, blocky voice.
The overall tone is bold and assertive with a retro-industrial flavor—part athletic headline, part arcade/tech signage. The squared, notched detailing adds a tough, mechanical edge, while the rounded corners keep it friendly enough to feel playful rather than harsh.
The design appears intended to maximize visual punch with dense, rounded-rectangular construction, while using consistent notches and slot counters to add character and keep shapes from becoming featureless slabs. It prioritizes bold recognition and a distinctive industrial rhythm over small-size text clarity.
In continuous text the dark color and narrow internal space create strong impact but can reduce letter differentiation at smaller sizes. The numerals and capitals are particularly suited to short bursts where their chunky geometry and distinctive cut-ins can be appreciated.