Two bags in one. Great pack for backpacking across the globe or everyday travel. Day-pack zips off the main bag. 29" x 13" x 9" Straps zip away for the plane. Sleeping bag compartment at bottom for quick access. Adjustable shoulder harness, sternum strap, form-fitting hip belt, and load control straps. Padded, removable shoulder strap. Lockable, double slide main panel zipper. Side compression straps. Internal compression panel and travel organizer. Zippered internal pocket. Double layered bottom. Rugged IronFiber nylon fabric in wear areas.