Class A by Shane Sayers of High-Logic.com is a free narrow sans serif with tall, spare letters and a hand-drawn edge. Its near-monoline strokes swell gently through the rounded forms rather than holding a strictly mechanical width. Open shapes and unusual bends in letters such as B and R keep the design lively and slightly eccentric.
Fashion branding can use that lean silhouette for an elegant but unconventional voice, while music posters and magazine publishing benefit from its loose, drawn quality. The lettering can echo line illustration on packaging, becoming part of the picture.
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Class A is my second font and another all-caps font.