Briggs & Riley @Work Luggage Clamshell Backpack, Black, One Size Ballistic nylon outer fabricresists wear, water, dirt and abrasion Durable leather carry handle provides a comfortable grip YKK RC zipper hardwarefor smooth, self-repairing zipper action and ergonomic double zipper pulls SpeedThru pocketfor quick storage of items at security checkpoints Zippered, gusseted side water bottle pocket ; Outside Expanded Depth: 8 inch / 20.3 centimeter