What Our Gearhead® Experts Are Saying: "This vest is one of my favorite layering pieces. The Mackinaw wool is tough, warm, and still breathes really well, so I don’t overheat. I like the V-neck cut—it leaves room for a flannel or jacket without bunching up at the collar. The utility pockets are clutch for carrying small tools or just keeping my hands warm." We trust the Filson Wool Vest when we need warmth without bulk. Built with 24-ounce Mackinaw Wool, this vest has been a cornerstone of outdoor wear for over a century, prized for its ability to insulate even when wet and block out icy winds with its dense weave. Whether we’re layering it over a flannel or under a jacket, it delivers comfort and reliability in cold, damp conditions. The thoughtful design makes it practical for both fieldwork and everyday wear. A V-shaped neckline keeps the chest open for layering, while button-front closure and multiple utility pockets add easy function. Side-entry handwarmers take the edge off frosty mornings, and the rugged construction is made to last for decades of use. From the warehouse to the workshop to the woods, this vest is a trusted cold-weather companion.