Filson's Rugged Twill Rucksack is for everyday carry and the outdoors. The bag is made from lightly waxed Rugged Twill, Bridle Leather and brass. The large 33L main compartment will keep your belonging secure with rust resistant zippers and a Rugged Twill storm flap secured with leather straps. Shoulder straps are made from sturdy leather and are adjustable. Two front packet provided additional storage and quick access.