Filson briefcases are made from time-tested waxed-cotton fabrics. The Filson Original Briefcase, introduced in 1992, is made with our proprietary Rugged Twill. This fabric is a lightly waxed, tightly-woven cotton twill that’s extremely abrasion-resistant. The straps on Rugged Twill briefcases are made from vegetable-tanned Bridle Leather that is strong enough for horse tack. Filson also makes briefcases with the iconic waxed cotton, Tin Cloth. This canvas earned its reputation for durability in jackets and pants used by foresters and sportsmen in the Pacific Northwest.
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