Features Fabric/Nylon Imported Zipper closure 13" shoulder drop External compression straps for cinching or expanding 21" high 12.5" wide Description Deliver essential documents in a speedy manner with the Timbuk2 Especial Medio backpack. Equipped for bike messengers and daily commuters, this top-loading bag handily stores your 15-inch laptop, bike helmet, and daily documents within its dedicated laptop pocket, expandable front compartment, and cavernous main compartment. Its TPU front panel sheds light showers and road spray from ruining your precious gadgets and sensitive documents inside. Moreover, you'll appreciate the external water bottle pockets, which double as U-lock holders for securing your trusty steed when you arrive at your destination.