The Patagonia Black Hole 35L Pack combines the fortitude of a climber's haulbag with the everyday features necessary for the school and office commute. Featuring waterproof fabric and a water-resistant construction and zippers, the Black Hole Pack protects your gear from rain, rough handling and miles of abuse. The large main pocket offers a padded sleeve that holds most 17-inch laptops or a hydration reservoir, two mesh pockets, an organizer for a phone and zip drives, and a key keeper to ensure that your gym key stays put. A lid pocket for the small stuff seals with a moisture-shedding, reverse-coil zipper; it has daisy chain and laser-cut lash points to secure a skateboard or yoga mat. A zippered front pocket holds quick-access items like your wallet, a boarding pass and an electronic tablet. For carrying comfort, the padded shoulder straps have load lifters and a sternum strap, a molded back panel that sheds moisture and allows a cooling airflow, and a simple waistband to secure the load.