td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}This sturdy Backpack can stand up to any adventure and that includes your morning commute. It's made from X-Pac, a type of performance fabric typically used in sailing gear that's exceptionally strong and waterproof. There's a laptop sleeve on the inside, and two mesh pockets for water bottles and other essentials on the exterior. The whole top rolls and snaps close, and there's a tough strap at the top for lifting; stitched-down straps run in loops down the front, too, so you can clip on a carabiner. Both the back of the bag and the shoulder straps are padded with high-density foam and lined in comfortable mesh, and there's an adjustable chest strap for a secure fit. Exterior: X-Pac Sailing Fabric ; Interior: Nylon ; Roll Top ; Stitched Down Strap Loops ; Side Mesh Pockets ; Webbed Nylon Lift Strap ; High-Density Foam Backing ; Padded Adjustable Straps ; Internal Laptop Sleeve ; Style AC2070191 ;.