The bag is made of Cordura nylon with lots of pockets and storage. It has a detachable daypack for extra storage. The set is waterproof, has an internal frame in the back, has a padded back and padded backpack straps which can be hidden when the bag is being used as a duffel bag. The main bag has 2 pockets. one main and a smaller pocket at the bottom. It measures 25 x 14 x 9 and in excellent condition and ready for your next hiking trip.