Four exterior pockets [Large front zipper pocket, two side pockets, and a back pocket that converts to a luggage sleeve] Six interior pockets [a padded laptop sleeve, two trimmed pockets, and three elastic pockets] Top zipper closure Long detachable and adjustable strap that can be used crossbody or tied into backpack straps Interior key hook tassel keychain included Luggage sleeve on the back that converts to a pocket with a magnetic snap closure when not in use Length: 20" Height: 13" Depth: 6.5" Top Opening: 18" Laptop Sleeve: 15" Bottom Panel: 13.5" Top Handle Strap Drop: 11" Fit water bottles, or tumblers up to 4.75" in diameter Fit devices up to 17" measured diagonally, or 15" wide Snap it in place with devices up to 9.5" in length