Robert Oster X Joshua Thorp Fountain Pen Ink - Spritz

Robert Oster x Joshua Thorp Fountain Pen Ink in Spritz is a vivid olive green ink with warm undertones that give it a slightly earthy but still vibrant appearance on the page. The color shifts subtly between mossy green and yellow-green depending on the paper and nib, which gives writing a layered and organic look rather than a flat solid tone.

The ink flows smoothly and shows noticeable shading, especially in broader nibs where the darker edges and lighter centers become more visible. Like many Robert Oster inks, it feels well balanced in everyday use and performs cleanly without feeling overly dry or heavy.

There is a lively and slightly unconventional character to Spritz that makes it stand apart from standard greens. It feels expressive and creative without becoming difficult to read, which gives handwriting a distinctive look while still remaining practical for regular writing.