This pack carries the heavier loads of city commuters, full-time students and ramblers facing a day of unsettled weather in the mountains. Its large main pocket holds the bulk of things, and comes with a padded sleeve raised to help protect up to a 17-inch laptop. The sleeve has a tube port and accepts a hydration reservoir when you hit the trail. A second compartment holds daily supplies; keys, paperback, pens and phone. A zippered exterior pocket provides easy access to a wallet, an exterior stuff pocket stashes a shell, two stretch pockets hold water bottles, and a microfleece-lined pocket protects sunglasses or an audio device. To carry it all comfortably, the Fuego uses heat-venting airflow mesh for the shoulder straps and back panel. It has a webbing waistbelt,adjustable sternum strap with an emergency whistle and compression straps to stabilize the load. Made of a 420-denier 100% nylon oxford plain weave with an 840-denier 100% ballistics nylon bottom. The lining is 200-denier 100% polyester. All fabrics have a Deluge DWR (durable water repellent) finish.