The Unfortunate Decline of Filson Filson once stood as an emblem of rugged durability and timeless craftsmanship in the realm of outdoor apparel and gear. However, in recent years, the brand has Brands Mentioned: Bradley Mountain, Duluth Pack, Filson, Frost River, Heat Straps, Red Clouds Collective, ship john, tin duck denim, Vermont Flannel, Weatherwool