These backpacks come with interchangeable printed "face" panels that can be swapped out to change the design on the backpack any time. Collect all designs for the SAME backpack. 100% rugged Polyester with nylon lining. Large interior. 18" H x 12.75" W x 6" D Padded inner laptop sleeve Extra-large front zipper pocket perfect for magazines and folders Side mesh pocket for water bottle. Side Velcro pocket for phone and accessories. Backpacks are hand made individually for each order, so please give us about one week to make your bag just for you and get it out the door. You will receive a shipping confirmation email from us with your tracking number once it ships. Thanks!