Pilot Iroshizuku - Fuyu-syogun (Rigor of Winter) Ink

Iroshizuku Fuyu-syogun (Rigor of Winter) is a beautiful grey fountain pen ink, with some blue undertones. As with many less saturated inks, it has lovely shading out of broader fountain pen nibs.

Pilot's Iroshizuku line of fountain pen inks are the gold standard for a reason. They're well-behaved, wet-writing, generally quick-drying (<20 seconds), and come in an assortment of stunning colors. Because of how Iroshizuku inks tend to be, they can often be some of the most reliable inks to give you a great writing experience with dry-writing pens (think Japanese <Fine> and <Extra-Fine> nibs).

The only place I'm careful with them is in vintage sac-filling or celluloid pens: Iroshizuku inks can be quite alkaline, which can harm these sensitive vintage materials. See my guide on vintage-safe fountain pen inks for more information.