smart and spacious backpack. the db ramverk 26l backpack has everything you'd expect from an optimal backpack. the separate, padded laptop compartment holds up to 16 laptops and is equipped with quick access to help you through airport security. this backpack is approved as carry-on luggage and will follow you from the airport to the himalayan peaks.rib cage constructionâ„¢inspired by the human rib cage, which protects the body's most valuable organs, db's patented rib cage constructionâ„¢ protects your gear in the bag. the rib cage construction is built from strong, lightweight abs ribs formed as a triple-fold structure. this means that conventional padding can be dispensed with. this makes the bag lighter and yet protected all around.