Flexline is originally a hairline typeface that can be bolded with its own stroke according to the user’s needs.

When using a hairline font, which normally don't have a wide range of widths, people tend to stroke it looking for a more eye-catching advertisment or to emphasize a word in a text. The difficulty is that most typefaces are not designed to be stroked and in doing so people commit typographic crimes. This is not the case with Flexline.

Flexline is a font created to be widened through its stroke. This happens thanks to its rounded endings, its great x-height and subtle unions that neither disappear nor become more pronounced.