Slab Square Sisi 10 is a bold, normal width, low contrast, upright, normal x-height font visually similar to 'Classic Round' and 'Classic XtraRound' by Durotype, 'Orgon Slab' by Hoftype, 'Diaria Pro' by Mint Type, 'Directa Serif' by Outras Fontes, 'PF Centro Slab Press' by Parachute, and 'LFT Etica Sheriff' by TypeTogether (names referenced only for comparison).
Keywords: headlines, posters, sports branding, signage, packaging, collegiate, industrial, rugged, authoritative, vintage, impact, heritage, sturdiness, badge lettering, display clarity, blocky, octagonal, chamfered, bracketless, all-caps friendly.
A heavy, block-built slab serif with flat terminals and pronounced chamfered corners that create an octagonal, cut-from-metal silhouette. Strokes are sturdy and low-contrast, with square shoulders and compact joins that keep counters tight and forms dense. The uppercase set reads especially architectural, while the lowercase retains the same angular trimming and strong serifs, producing a consistent, poster-ready texture. Numerals follow the same faceted geometry, emphasizing solidity over delicacy.
Best suited to headlines, badges, and branding where a strong, structured voice is needed—especially sports/collegiate marks, event posters, and bold packaging labels. It also works for display signage and short editorial callouts where dense, rugged letterforms are an asset.
The overall tone is collegiate and workwear-adjacent, projecting toughness, tradition, and straightforward authority. Its sharp chamfers and big slabs add a utilitarian, stamped-letterpress feel that reads confident and a bit gritty rather than refined.
The design appears intended to deliver maximum impact through slabby weight and faceted, machined-looking corners, borrowing from traditional collegiate and industrial lettering while staying highly legible at display sizes.
The faceting is applied broadly across curves and corners, so round letters become multi-sided and highly graphic. In text blocks the heavy serifs and tight apertures create a dark, emphatic color that favors short runs and large sizes where the angular details can be appreciated.