George Gehrke's Xink is a revolutionary fly-fishing product designed to make your flies, leaders, and tippets sink easily. Invented by George Gehrke, Xink is patented and uniquely formulated to be 'wetter than water' without washing off, a previously considered chemical impossibility. This product can significantly reduce the need for lead in nymph and wet fly patterns. Simply apply a small amount of Xink to your fly before it gets wet to ensure it sinks effectively. George Gehrke's Xink has been around for 27 years and is considered by many to be one of the most important inventions in fly-fishing since the hook itself.