PILOT Vanishing Point Collection Refillable & Retractable Fountain Pen, Blue Barrel with Rhodium Accents, Blue Ink, Medium Nib (60243)
Thinking outside the box and turning it upside-down, the point of the Pilot Vanishing Point fountain pen is placed on the same end as the clip — so when it's fastened inside a pocket, the ink simply has no chance of leaking, because it's facing upward.