ULTRALIGHT VEST FilsonIcons PrimaLoft® is a lightweight synthetic

PrimaLoft® is a lightweight synthetic insulation engineered to mimic the heat-trapping ability of goose down

the Lightweight Alaskan Guide shirt is made for year-round comfort and practical functionality in the field

and it won’t ride up when seated

They’re ideal for husky builds and active use

If there’s room under your rain shell for this much insulation

ULTRALIGHT VEST FilsonIcons PrimaLoft® is a lightweight syntheticThe Filson Ultralight vest is a lightweight packable layer that provides warmth, wet or dry. It blocks the wind, adds warmth worn alone, and is low bulk for wearing under a rain jacket. The 1. 5 oz. Cordura nylon shell fabric has ripstop reinforcing for strength that belies its weight. A second layer over the shoulders adds durability and weather resistance. This ultralight fabric is descended from the material that was developed for parachutes during