This industrial-strength fabric comes from Britain’s oldest, most-storied mills, and is lightly waxed to keep valuables dry and protected from the weather. The Bridle Leather for the handles, straps, and reinforcements is strong and durable enough for horse tack. It’s been slowly vegetable-tanned over several weeks in natural plant-based solutions that transform top-grade cowhide into sturdy, supple and lustrous leather that molds to the shape of your hand over decades of use. The rustproof heavy-gauge zipper is built from solid brass and is reinforced with more of our saddle-grade leather. Sand-cast brass hardware is debossed custom for Filson. Construction details were carefully considered in this briefcase, even those that go unseen, such as the Tin Cloth binding on the interior seams that prevents fraying and wear. Two interior dividers keep contents organized, and are sized to accommodate tablets and smaller laptops. Exterior stow pockets keep quick-access necessities close at hand, and the adjustable Bridle Leather shoulder strap is detachable for convenient hand carry. Fabricated in the U.S. from the finest materials to ensure it lasts for generations, the Rugged Twill Original Briefcase is a classic that defies time. FEATURES Industrial-strength lightly waxed fabric 2 internal dividers 2 external full-width stow pockets Double-layer reinforced bottom Bridle Leather handles and adjustable, removable 46” shoulder strap Meets standard airline size requirements