The iconic Filson Jac-Shirt has been weathering the storm for nearly 50 years now. Here, the latest version is crafted with 100% virgin Mackinaw Wool and is designed to protect against the rainy and cold elements of the Pacific Northwest. It’s still an easy wear with the versatility of a heavier overshirt, offering a buttoned front and adjustable cuffs with secured chest pockets. The Mackinaw Wool construction naturally wicks moisture and is highly water- and wind-resistant, while remaining breathable. Only the strongest fleece fibers are used in this tightly-woven twill pattern, showcasing Filson’s signature durability.