The 24-Hour Briefcase combines heritage materials with high capacity and modern design. The waxed Tin Cloth material protects gear from foul weather and spray. This tightly woven canvas duck has been thoroughly saturated with wax for water resistance. The Bridle Leather handles are thick and strong for lasting service. The main zipper is solid brass from YKK® for a lifetime of rust-free operation. The interior is fully lined with unwaxed cotton, with a padded sleeve for laptops up to 15”. Exterior zippered pockets have organization pockets inside. Rear trolley strap slides over luggage handles. Detachable, adjustable webbing shoulder strap.