Montana’s Gallatin, Jefferson, and Madison rivers stand on their own as three of the finest fisheries in the Lower 48. When these classic headwaters converge—near Three Forks—they form Montana’s powerhouse Missouri River. The new Headwaters Jacket is built along this same multi-pronged path to brilliance, sheathing a fleece & taffeta liner in GORE-TEX Performance 2-layer shell fabric for superior protection from a freak deluge, and afterhours warmth when the sun dips and fishing turns frigid.