Description: 100% Coated crinkle nylon Imported nylon lining Adjustable padded backpack straps and top carry handle Expansion zipper adds approximately 3' of depth for added capacity Padded back panel and base for extra comfort and added protection of contents Dimensions: 13' x 17.75' x 9' Weight: 1.12 lbs Hit the books with this backpack--the roomy interior has plenty of space for textbooks, notepads and more, plus the front pocket has a built-in organization panel with a place to slip your pen and phone. Dimensions: 13' x 17.75' x 9' Weight: 1.12 lbs