Filson wool bibs have kept outdoorsmen warm in freezing conditions for three decades. The thick 24-oz. wool is made from longest, strongest fleece fibers. The thick yarns are tightly woven into a dense twill fabric that sheds water and wind while remaining highly breathable. Our wool wicks moisture away for evaporation and insulates dry or wet. Mackinaw's tight weave also provides outstanding durability, often being handed down to the next generation. The relaxed fit of our bibs provides unrestricted ease of motion for active use. The sides are gusseted sides with metal buttons for easy on/off. Flapped cargo pockets on the chest and legs keep essentials close at hand. Elastic suspenders. Unhemmed.

Mackinaw Wool, the finest example of nature’s original performance fabric