Made in Washington, USA, Filson has blended the wool that’s provided protection from the Pacific Northwest’s cold, rainy weather for over a century with the easy-wearing versatility of a heavy overshirt.  

100% virgin Mackinaw Wool features a unique fiber structure that wicks moisture away for evaporation. This natural wicking process has yet to be duplicated by fabrics developed in laboratories and is the primary reason wool has been the fabric of choice in foul weather for centuries. The Mackinaw Wool Anorak can absorb up to 30% of its own weight in water without feeling damp or clammy. 

Only the longest and strongest fleece fibers are selected for Mackinaw Wool. They’re spun into strong yarns that are tightly woven in a twill pattern for a fabric that is highly water- and wind-resistant while maintaining outstanding breathability. Mackinaw Wool clothes are exceptionally durable and are often handed down to the next generation.