The Patagonia Chacabuco carries a full quiver of gear when you're traversing a pulsing city or crossing a wind-scoured mountain pass. It houses everything in two main compartments and has an exterior shock cord for additional carrying capacity (bike helmet ). The generous main compartment holds most of your gear and comes with a padded and lined tablet sleeve for organized access to your hand-held electronics. A padded pocket fits most 15 laptops, which can be accessed without having to unpack everything else. A zippered outside pocket holds energy bars or small essentials, and a brushed tricot-lined top pocket protects sunglasses or your phone. Two stretch pockets keep water bottles within reach. The Chacabuco's suspension system uses heat-venting airflow mesh on the back panel and shoulder straps to keep you cool on long hikes. With a webbing waist belt, sternum strap and compression straps to stabilize the load. Made from 630-denier 100% nylon (50% recycled/50% high-tenacity) plain weave with a polyurethane coating and a DWR (durable water repellent) finish. The lining is 200-denier 100% recycled polyester.