The EARTH EXPLORER Photo Bag collection reflects National Geographic's dedication to exploration and conservation. The bags are an ideal blend of today's protective carrying technology and a traditional 'explorer' look and feel. Each bag in the EARTH EXPLORER collection has solid brass buckles with an antique finish. The Earth Explorer NG 5160 Medium Backpack can carry all your essentials while keeping your photographic and video gear, as well as a laptop, safe and secure, plus it allows ample room for personal effects. External Dimensions 17.72 x 13.39 x 8.27 inches. Internal Dimensions 9.06 x 11.02 x 4.33 inches. Weight 3.37 lbs.